complementary strand
Americannoun
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either of the two chains that make up a double helix of DNA, with corresponding positions on the two chains being composed of a pair of complementary bases.
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a section of one nucleic acid chain that is bonded to another by a sequence of base pairs.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Each strand becomes the model for the complementary strand.
From Textbooks ● Jan. 1, 2018
The RNAi system pulls the siRNA strands apart and uses the complementary strand to seek out and bind to the target messenger, thus disabling it.
From Economist ● Oct. 15, 2015
For example, if one strand has a region with the sequence AGTGCCT, then the sequence of the complementary strand would be TCACGGA.
From Textbooks ● Jun. 19, 2013
In the double helix, a single strand of genetic alphabet--say, CAT--is paired, rung by rung, with its complementary strand, GTA.
From Time Magazine Archive
The damaged copy of a gene is reconstructed using the complementary strand, or the second copy of the gene, as its guide.*
From "The Gene" by Siddhartha Mukherjee
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
