Describes the specific matching of base pairs. This matching occurs because the structure of one base precisely fits with, and bonds to, another specific base. In DNA adenine and thymine are complementary and form a base pair, as do cytosine and guanine. When pairing occurs between DNA and RNA, adenine and uracil are complementary, and cytosine and guanine are complementary.

Single-stranded DNA produced from an RNA template (usually mRNA) by reverse transcriptase in vitro. It lacks the introns present in corresponding genomic DNA. It is most commonly made to use in PCR to amplify RNA (RT-PCR).

with respect to nucleic acids, complementary means that one strand of nucleic acid (DNA or RNA) can pair with and serve as a template for its complementary strand; complementary strands are related by the base-pairing rules: A pairs with T or U and C pairs with G.

Colors opposite each other on a color wheel that contrast with each other: red-green, blue-orange, and yellow-violet.

either one of two chromatic colors that when mixed together give white (in the case of lights) or gray (in the case of pigments); "yellow and blue are complementaries"

Colors which lie directly opposite each other on the color wheel are as unlike one another as they can be. The two colors selected contrast with each other to make a bold statement (ie: red & green, blue & orange, etc.)

of or relating to or suggestive of complementation; "interchangeable electric outlets"

Complementary is the term for two identical periodic signals where one signal is electrically inverted from the other. Example of single channel electrically inverted. Complementary signals are typically generated by inversion of the electrical output from a single channel.

Output circuit for which also the inverted signals are outputted (e.g. Channel A and Channel A). Electrically, the 1/0 levels are transmitted as voltage differences between two lines. In this way the information signal (the difference) remains pure as in general interferences are interspersed equally on both lines.

One skilled in compliments.

of words or propositions so related that each is the negation of the other; "`male' and `female' are complementary terms"

acting as or providing a complement (something that completes the whole)

Helping to constitute a whole or to supply a lack

the use of two or more drugs, each of which has a different ability to kill cancer cells that is lacking in the other.

Serving to fill out or to complete; as, complementary numbers.