Definitions for "Chromosomes"
Related Terms:
Chromosome, Chromatin, Recombination, Heterochromatin, Telomerase, Euchromatin, Homologous chromosome, Telomeres, Translocation, Telomere, Cell nucleus, Gene conversion, Homologous chromosomes, Crossing over, Genetic recombination, Genome, Homolog, Crossing-over, Homologous, Cloning, Chromatid, Homologous recombination, Recombinant, Ploidy, Insertion, In situ hybridization, Nucleosome, Genes , Gene, Intron, Yeast artificial chromosome, Introns, Okazaki fragment, Expression vector, Sister chromatid exchange, Primosome, Origin of replication, Rdna, Replisome, Promoter, Nuclear dna, Exons, Dna replication, Yac , Plasmid, Exon, Chromatids, Homeobox, Mitochondrial dna, Locus/loci
Separate strands of genes, contained in the nucleus of a cell. Normally, chromosomes appear in corresponding pairs. A genome is made up of a complete set of paired chromosomes.
Discrete units of the genome carrying many genes. Each chromosome consists of proteins and long strands of DNA.
The very large and complex molecules of DNA that occur in the nucleus of every cell and that carry the genetic information needed to make every protein in the body.
Structures within a cell that carry its genetic information in the form of DNA
Structures within the cell body made up of genes. go to glossary index
Thread-like DNA structures in the nucleus of an animal or plant cell that contain the genetic information that determines the characteristics of that particular organism.
Cylindrical-shaped bundles in the cell nucleus, made of a very long thin strand of DNA coiled upon itself many times. Humans have 46 chromosomes (23 pairs) in most cells of their bodies. The sex cells (the unfertilised egg and sperm) contain 23 unpaired chromosomes each. Fertilisation of a 23-chromosome egg by a 23-chromosome sperm produces a new 46-chromosome cell, which grows into an individual. One of a chromosome pair is inherited from each parent. The genes we inherit are located on the chromosomes. search for Chromosomes
is the term used to describe the amino acid chain upon which all our genes are located. We have 46 pairs of chromosomes. Each chromosome is responsible for a different physical, emotional, and behavioural trait.
The DNA-containing cellular structures that carry genetic information.
made up of two identical halves called sister chromatids, which are joined at the centromere. Each consists of a single, tightly coiled molecule of DNA.
The structures in the cell nucleus which carry the genes.
The threadlike bodies within the nucleus of the cell, composed primarily of DNA and bearing the genetic information of the organism.
in a eukaryotic cell, long threads of DNA associated with a protein which contain hereditary information.
structures located in the nucleus of the cell that contain DNA which** transmits genetic information; this information contains codes for all human qualities and characteristics
composed chiefly of DNA, they are the carrier of genes, the hereditary information
Structures in the nuclei of cells, such as the egg and sperm, on which the hereditary or genetic material is arrayed.
Carry all genetic information and are located in the cell nuclei. Changes of the chromosomes may indicate the development of a disease. They may be detected by certain examinations like cytogenetics.
Chromosomes are bundles of tightly coiled DNA. Humans have 23 paired chromosomes (22 pairs of autosomes and a single pair of sex chromosomes). A single chromosome of each pair is passed from each parent to child. Each chromosome is formed when the DNA strand combines with lots of small proteins called histones. The DNA and histones automatically wrap themselves up into a shape that looks like an elongated letter X.
Microscopic rod-shaped structures composed of double-stranded DNA and proteins; can be visualized during a certain phase of the cell cycle. Chromosomes are often regarded as representing the entire genome of an organism.
linear units of DNA.
( KROH-MOH-SOH-M-S ) CHROMOSOMES, ARE THE, X & Y SHAPED, PAIRED MEGA-MOLECULES, THAT CONTAIN OUR GENES. THERE ARE, 46 CHROMOSOMES, IN EACH, OF OUR GROWING STEM CELLS. THE CHROMOSOMES, FORM FROM, PAIRS CHROMATIN THREADS, INTO DOUBLE COILS OF CHROMATIN CALLED CHROMATIDS, THE CROMATIDS THEN REPRODUCE THEMSELVES INTO PAIRS OF CHROMATIDS, CALLED CHROMOSOMES. WHEN THE NUCLEUS OF THE STEM CELLS DIVIDES IN TWO, EACH CHROMOSOME SEPARATES, INTO TWO EQUAL CHROMATIDS IN ORDER TO PROVIDE, A EQUAL GROUP OF CHROMATIDS,TO EACH NEW CELL.. 2 CHROMATINS = 1 CHROMATID 2 CHROMATIDS = 1 CHROMOSOME
(Greek, chroma= color + soma= body, because it is stained by certain dyes) double stranded DNA coiled around histones. Condenses during mitosis and meiosis.
DNA molecules that contain the set of instructions required to build and maintain cells.
The thread-like bodies found in all living cells which carry the genetic information. Normal human cells contain 23 pairs of chromosomes.
Groups of many genes that move together as cells divide.
any of the microscopic rod-shaped bodies formed by the incorporation of the chromatin in a cell nucleus during mitosis and meiosis: They carry the genes that convey hereditary characteristics, and are constant in number for each species.
Dense structures, composed of tightly coiled DNA strands and associated histones, that become visible in the nucleus when a cell prepares to undergo mitosis or meiosis; normal human somatic cells contain 46 chromosomes apiece.
chromosomes store information in the chemical structure of DNA much like a book or a compact disk. The nucleus contains 46 chromosomes, two copies of each of the 23 different human chromosomes. One copy of each chromosome is inherited from an individual's mother and one copy is inherited from an individual's father, giving a child DNA characteristics of both its mother and father.
Thread-shaped structures that occur in pairs in the nucleus of a cell. Chromosomes contain the genetic information of living organisms.
Complex, helical structures in plant and animal nuclei that carry the linearly arranged genetic units, DNA and RNA.
The threadlike structures within the nucleus of a cell that carry the genes.
Found in the nuclei of cells, chromosomes contain genetic information which determine the hereditary characteristics of offspring.
Structures composed of very long DNA molecules (and associated proteins) that carry most of the hereditary information of an organism. Chromosomes are divided into functional units called genes, each of which contains the genetic code (instructions) for making a specific protein. A normal human body cell ( somatic cell) contains 46 chromosomes; a normal human reproductive cell ( gamete) contains 23 chromosomes.
are threadlike structures found in every cell of the body. Each chromosome contains hundreds of genes. A human cell normally contains 46 chromosomes, 23 from each parent.
All normal human cells with a nucleus contain 46 structures called chromosomes. The genes are the principal structures that make up the chromosomes. The X and Y chromosomes determine our sex and are referred to as the sex chromosomes.
Discrete physical units carrying genetic information. Each chromosome contains a long duplex DNA molecule and associated proteins. Usually, chromosomes are visible only during cell division. The number of chromosomes varies widely among different species.
Structures within every body cell that carry the hereditary material DNA.
Individual bundles of DNA within the nucleus of cells that contain the genetic information of the cell and organism.
Found in all human body cells, chromosomes contain DNA (genetic information) which determines individual characteristics, such as whether a person will have blue eyes or brown eyes, or whether someone might get liver disease.
These are part of the babies DNA. They are rod shaped structures (genes) located in the center of all cells. These contain the hereditary, genetic material given by mother and father to the baby. Babies have 23 pairs of chromosomes (46 total). Two of these chromosomes are the sex chromosomes that are called X and Y. Baby girls have 2 X chromosomes and boys have one X and one Y chromosome.
Long threadlike structures made of DNA and protein that are the gene-bearing structures of eukaryotic cells.
threadlike structures made up of DNA, containing the genes. Each cell contains 23 pairs.
46 paired structures inside each cell which hold all the body's genetic information in the form of genes.
Structures found in the nucleus of a cell that are made up of double-stranded DNA and proteins. Genes that determine specific traits (such as eye color or susceptibility to certain diseases) are arranged along the chromosome. Most human body cells contain 23 pairs of chromosomes.
discrete structures which occur in eukaryotic cell nuclei, contain one or two DNA double helices (in their unreplicated and replicated forms respectively), and are associated with protein especially when condensed.
DNA molecules in a eukaryotic organism for holding and transmitting genetic information (insert chromosome image). Humans have 23 pairs of chromosomes for a total of 46. Two chromosomes are sex chromosomes either X Y (male) or X X (female). The other 22 pairs are autosomes.
"one of the threadlike structures, usually found in the cell nucleus, that carry the genetic information in the form of genes."
Tiny thread-like structures inside each cell. Chromosomes carry the genes.
chromosomes are found in the nucleus of cells. They are made up of DNA and there are 23 pairs of them in most cells of the body.
In humans, a nuclear structure consisting of or containing DNA which carries the genetic information essential to the cell. DNA Deoxyribonucleic acid. A deoxyribonucleotide polymer that is the primary genetic material of all cells. Organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine).
Thread-like bodies consisting of a series of different genes arranged in linear fashion. They occur in the nucleus of every plant cell.
small, threadlike structures in the nucleus of a cell that contains genetic material (DNA). return
We each have 23 pairs of chromosomes that contain all of our genetic information (DNA). These are microscopic rod-like structures that appear in a cell nucleus during cell division, they consist of neuroprotien arranged into units called genes, which are responsible for carrying hereditary characteristics
Thread-like linear strands of DNA and associated proteins.
The carrier of genes, the hereditary information which resides in DNA.
tightly coiled strings of DNA that contain genes and are located in cells.
Rod-shaped structures located in the nucleus of a cell which contain hereditary (genetic) material. Humans have 23 pairs of chromosomes (46 total). Two of the 46 are the sex chromosomes, which are the X and Y chromosomes. Normally, females have two X chromosomes and males have one X and one Y chromosome.
Chromosomes are thread-like bodies of DNA which contain the genetic code in genes. Half of the chromosomes will be inherited from the mother and the other half from the father.
Chromosomes are packets of genetic material. The number of chromosomes varies from species to species. Humans have 46 pairs of chromosomes, fruit flies have four pairs. Each member of a pair is identical, one chromosome comes from the father, the other from the mother. Therefore sex cells have only have the number of chromosomes of all the other cells. When sex cells join during fertilization, the chromosomes pair up to make the full suite for the species. Chromosomes are an effective way to package DNA. All the chromosomes together comprise the genome. If the genome is the library, and genes are the books, chromosomes are like the shelves. Definition link: chromosomes
The total DNA sequence in the nucleus of each cell is tightly wound to create structures which contain all of your genes; these structures are known as chromosomes. A normal human cell contains 46 chromosomes, of which 22 pairs are autosomes and two are sex chromosomes.
Tiny rod-shaped pieces in the nucleus of a cell that hold the DNA code needed to build a human. Most human cells have 46 chromosomes including 22 pairs of autosomes and the X and Y sex chromosomes. Sperm cells have 23 chromosomes.
The self-replicating genetic structures of cells, formed from DNA and protein, found in the cell nucleus. Each chromosome contains hundreds or thousands of the genes that form our hereditary blueprint. Humans have 23 pairs of chromosomes (each parent contributes one chromosome in each pair), containing a total of 50,000 to 100,000 genes from each parent.
The structures in cells that contain the genes.
Microscopic bodies inside cells. Chromosomes carry the genes that convey hereditary characteristics.
structures, each consisting of two connected rods which are made up of thousands of genes, which transmit all the hereditary information necessary for the development and formation of the tissues of the body. Every human cell (other than the ova and sperms) normally contains 23 pairs of chromosomes.
One of the threadlike ‘packages’ of genes and other DNA in the nucleus of each cell. Different kinds of organisms have different numbers of chromosomes. Humans have 23 pairs of chromosomes, 46 in all. Each parent contributes one chromosome to each pair, so children get half of their chromosomes from their mother and half from their father.
A thread like structure of genetic material (genes) made up of a long molecule of tightly coiled DNA. The chromosomes are usually x shaped and usually found in pairs in the cell nucleus.
Microscopic, threadlike structures found in the nuclei of living cells, and also in cells without nuclei such as bacteria. They are made up of DNA and protein and contain chains of genes.
Structure in the nucleus of the cell containing all the genes.
Microscopic structures, present in the nucleus of each cell, which contain all of our genes. Abnormal size or number of chromosomes is a cause of some birth defects and mental retardation.
The thread-like structures in cells that carry DNA, on which genetic information is arranged.
The structures within cells that carry the genetic information in the form of DNA. Each chromosome is composed of a single, long molecule of DNA, complexed with specific proteins. Humans have 22 pairs of autosomes and 2 sex chromosomes. One member of each pair of chromosomes is inherited from the father, and the other from the mother.
filaments of genetic material in every cell nucleus that are made up of genes and that transmit genetic information from one generation of cells to the next.
The microscopically visible carriers of the genetic material. They are composed of deoxyribonucleic acid (DNA) and proteins and, under a microscope, look like little rods. See the entire definition of Chromosomes
Threadlike structures—in the nucleus of cells—that carry genetic information.
Very long super-coiled DNA molecule that carries the information template enabling replication of cells and the associated living creature.
Contain genes, working stretches of DNA that carry the genetic code for specific proteins. Normal human cells contain 46 chromosomes; mature normal human gametes have 23 chromosomes.
The paired, self-replicating genetic structures of cells that contain the cellular DNA; the nucleotide sequence of the DNA encodes the linear array of genes.
Structures in the cell nucleus containing DNA, the genetic material.
Structures in each cell in the body, which contain genetic material
Structures found in the nucleus of a cell that are made up of double-stranded DNA and proteins. Chromosomes carry genes that determine specific traits and can pass the traits from one generation to the next. Several studies suggest some susceptibility to psoriasis may be inherited.
The rod-shaped structures (found in most cells) that contain genetic information, or blueprints. In humans, each cell typically has 46 chromosomes, or 23 pairs.
The self-replicating genetic structure of cells containing the cellular DNA. Humans have 23 pairs of chromosomes.
The organized structure that carries the genetic information, often appearing as rods in the nucleus. All the cells of an individual of a given species contain the same number of chromosomes. Humans have 46 chromosomes, half of which come from the father and the other half from the mother.
the structures made of DNA chains that contain genes
Structures in the nucleus of a eukaryotic cell that consist of DNA molecules that contain the genes. PICTURE
Any of the bodies in the nucleus of a cell that contain chromatin and genes that carry heredity before cell division takes place; they occur in pairs, one derived from the mother, the other from the father
The structures that contain the genes. Normal human cells contain 46 chromosomes; mature normal human gametes have 23 chromosomes.
Chromosomes are structures located in the nucleus of the cell that contain our genetic material (genes). Humans have 23 pairs of chromosomes: half of each pair is inherited from our mother, and the other half from our father.
Threadlike components in the cell that contain DNA and proteins. Genes are carried on the chromosomes.
The threadlike structures in the cell nucleus that carry the genetic information in the form of genes. Chromosomes are made of DNA and histones.
structures located inside each cell in the body containing the genes which determine a person's physical make-up.
present in the nucleus of cells and containing the DNA which transmits genetic information, chromosomes contain the genes or hereditary determiners. The normal number of chromosomes for a human being is forty-six in all somatic cells.
The rod-shaped structures found inside every cell of the body which contain the information that determine all of an individuals characteristics. Normal human cells contain 46 chromosomes.
nucleic acid-protein structure in the nucleus of a cell. Chromosomes are composed chiefly of DNA, the carrier of hereditary information. Chromosomes contain genes, working lengths of DNA that carry the genetic code for specific proteins, interspersed with large amounts of DNA of unknown function. A normal human somatic cell contains 46 chromosomes; a normal human gamete cell contains 23 chromosomes.
One of the set of bodies in the nucleus which determine hereditarily cell structure and function.
A threadlike linear strand of DNA and associated proteins in the nucleus of eukaryotic cells that carries the genes and functions in the transmission of hereditary information.
structures found in the nucleus of cells that are composed of threads of DNA, which transmit genetic information. During cell division, the DNA strands become tightly coiled, and when appropriately stained, the chromosomes are visible under a microscope. Humans have 46 chromosomes with 23 pairs.
These are found inside the nucleus of a cell and are made up of long strands of DNA. They are duplicated every time a cell divides. Chromosomes pass on the genes of the organism from one generation to the next.
The several things wrapped up in the nucleus which are made up of DNA. Humans have 23 pairs of these things in their regular cellular nuclei, and 23 single lonely unpaired chromosomes in the nuclei of their sex cells, which are just waiting for someone to answer the personal ads they've placed.
thread-like structures in the nucleus of cells. Chromosomes are made of genes. Genes are made of DNA. DNA controls inherited traits such as appearance and hair color
Structures in the cell's nucleus, made up of protein and DNA, that contain the genes.
Rod-shaped bodies in a cell's nucleus which carry the genes that convey hereditary characteristics. Made up of DNA.
Structures located in the nucleus of a cell, containing genes.
the structures in cells that contain genes. They are composed of deoxyribonucleic acid (DNA) and proteins and, under a microscope, appear as rod-like structures. See deoxyribonucleic acid (DNA), gene.
The fundamental strands of genetic material (DNA) that carry all of our genes. There are 23 pairs in each cell. Tumor cells sometimes have more or less than 23 pairs.
Threadlike structures in animal or plant nuclei, seen during karyolinesis (nuclear division characteristic of mitosis) that carry the linearly arranged genetic material.
structures found in the nucleus of a cell, which contain the genes. Chromosomes come in pairs, and a normal human cell contains 46 chromosomes.
One of the structures within the nucleus of a cell that transmits genetic information. Each of the chromosomes contains a double strand of the helical nucleoprotein deoxyribonucleic acid (DNA). Chromosomes occur in 23 pairs in every human cell.
Threadlike "packages" of genes and other DNA in the nucleus of a cell. Individuals receive half of their chromosomes from their mothers and half from their fathers.
46 are found in cells and carry genes.
The self- replicating genetic structures of cells containing the cellular DNA that bears in its nucleotide sequence the linear array of genes. In prokaryotes, chromosomal DNA is circular, and the entire genome is carried on one chromosome. Eukaryotic genomes consist of a number of chromosomes whose DNA is associated with different kinds of proteins.
The genetic material in the nucleus of every cell in the body. In most cases, human cells have 46, except for sperm and eggs which each have 23. Humans with certain rare genetic conditions (for example, Down's syndrome and Turner's syndrome) may have more or fewer than 46 chromosomes.
Physical structures in the cell's nucleus that house the genes. Each human cell has 23 pairs of chromosomes.
Structures found in the nucleus of the cell that are made up of genes. Chromosomes come in pairs, and a normal human cell contains 46 chromosomes (22 pairs of autosomes and 2 sex chromosomes). A chromosome is a DNA complex with basic proteins called histones.
The fundamental self-replicating genetic structures of cells that contain cellular DNA that carry our genes. There are twenty-three pairs of chromosomes in each cell.
Structures inside the nucleus of a cell, made up of long pieces of DNA coated with specialized cell proteins, that are duplicated at each cell division. Chromosomes thus transmit the genes of the organism from one generation to the next.
The structure within a cell's nucleus that holds the DNA. Each cell has 46 chromosomes, except for the gametes, which have 23.
Microscopic, rod-shaped bodies in cells which contain genetic material
Structures in the cell nucleus, each containing the DNA for many hundred genes, packaged with proteins.
Structures in the cell nucleus that are made up of genes; the carriers of heredity.
Threadlike bodies found in the nucleus, or center part, of a cell that carry the information of heredity.
Parts of the cells responsible for the development of hereditary characteristics.
double stranded DNA helixes.
Structures in the nucleus of each cell that contain the genes, the units of hereditary transmission. A human cell has forty-six chromosomes, arranged in twenty-three pairs. One of these pairs consists of the sex chromosomes. In males, one member of the pair is an X-chromosome, the other a Y-chromosome. In females, both members are X-chromosomes. See also gene, X-chromosome.
Structures located in the nucleus of a cell, which contain the genes. In a normal human being, chromosomes are paired; each cell has 46 chromosomes consisting of 22 pairs of autosomes and 2 sex chromosomes.
The units along which genes are arranged. Humans have two sets of 23 chromosomes, with one set coming from each parent.
Thread-like structures found in the body's cells that carry the genetic material. The normal human chromosome number is 46, made up of 23 pairs.
46 are found in human cells. Genes are carried among chromosomes.
Thread like structures that lie inside the nucleus of a cell. A human cell contains 23 pairs of chromosomes. Chromosomes are packed up with genes which carry all the information needed for the human body. The 23 pairs of chromosomes include a pair of sex chromosomes that determine the sex of the embryo. There are two types of sex chromosomes, X and Y - the Y is smaller than the X and contain all the essential genes for sex determination. The presence of a Y chromosome ensures a male (XY), its absence ensures a female (XX).
Sausage shaped bundles in the cell nucleus made of a very long thin strand of the chemical molecule DNA coiled upon itself many times. Humans have 46 chromosomes (23 pairs) in most cells of their bodies. The sex cells (the unfertilized egg and sperm) contain only 23 unpaired chromosomes each. Fertilization of a 23-chromosome egg by a 23-chromosome sperm produces a new 46-chromosome cell which grows into a new individual. In this way one half of each chromosome pair is inherited from each parent.
A chain of genes found in cells. They are present in all cells in the body and consist of DNA and a supporting structure of protein.
A single DNA molecule, condensed into a compact structure in vivo by complexing with accessory histones or histone-like proteins. Chromosomes exist as homologous pairs in higher eukaryotes
Rod-like structures composed of highly coiled DNA and proteins.
Threadlike bodies that carry genetic information. They are found in the nucleus, or center part, of a cell.
The DNA in every cell of every organism is divided into chromosomes. Each chromosome carries a number of genes within its DNA sequence. Chromosomes are usually found in the nucleus of cells as a large, diffuse mass of DNA. However, during cell division chromosomes condense into thick, rod-like structures that can be easily seen under a microscope. See Figure B-9.
The structures found within a cell that contain the genetic information of an organism.
The part of a living cell that contains the cell's genetic information. Each chromosome is made up of thousands of genes, and all cells in complex organisms, except reproductive cells, contain paired sets of chromosomes (one from each parent). Chromosomes in reproductive cells are not paired.
long, stringy aggregate of genes formed from condensed chromatin.
Long strings of genetic material made up of DNA and accessory proteins. The DNA contains the approximately 30,000 to 100,000 genes that make up the human genome. Human cells contain 23 pairs of chromosomes (46 total), with mother and father each contributing one chromosome to each pair.
Rod-shaped bodies found in the nucleus of cells in the body. They contain the genes, or hereditary constituents. Human beings possess 23 pairs.
Rod-like, gene-bearing structures found in the cell nucleus. They are composed of DNA and protein. Humans have 46 chromosomes.
Thread-like, darkly staining bodies within the nucleus, composed of DNA and chromatin which carry the genetic information.
The 46 (in human beings) structures in the nuclei of cells on which the genes, which contain hereditary information, are arranged.
Rod-like structures containing genes occurring in pairs within the nucleus of each cell. Human cells carry 23 pairs of chromosomes.
Threadlike structures of DNA, located in the nucleus of cells, that form a collection of genes. A human body cell normally contains forty-six chromosomes.
There is a lot of DNA in each cell. To make space and to make sure that any gene can be found, DNA is folded into structures called chromosomes. There are 46 chromosomes in most human cells, except for sperm and egg cells, which have 23 chromosomes each.
The cellular structures that contain the genes.
Visible carriers of the hereditary information; constituent parts of the nucleus that can be dyed intensively.
In a prokaryotic cell or in the nucleus of a eukaryotic cell, a structure consisting of or containing DNA which carries the genetic information essential to the cell. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)
condensed form of chromatin visible during cellular division
A male bird has two Z(sex)chromosomes and a female one Z and one W. These can be seen under a microscope and are used in chromosome analysis to determine the sex of the bird. (See KARYOTYPING)