Which of the following DNA sequences is complementary to 5' atggtcagt - ProProfs Discuss
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Which of the following DNA sequences is complementary to 5' ATGGTCAGT 3'?



A. 5 ATGGTCAGT 3
B. 5 TGACTGGTA 3
C. 3 TACCAGTCA 3
D. 3 ACTGACCAT 3

This question is part of Chapter 14: DNA: The Genetic Material
Asked by Aggiegal, Last updated: Nov 01, 2019

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2 Answers

B. Lucian

I fell in love with Literature when i was a child and since i gained more consciousness, I've pursued it as a career and I'm lovin' it.

B. LucianLiterature Professor, Diploma in Classic Literature, Denver, Colorado
Literature Professor, Diploma in Classic Literature, Denver, Colorado

Answered on Nov 01, 2019

Looking at the DNA sequence provided (5’ATGGTCAGT3’), we can tell what the complementary DNA sequence will be. This question is testing your knowledge on complementary base pairing in strands of DNA. Complementary base pairing in DNA is when guanine forms three hydrogen bonds with cytosine and adenine forms three hydrogen bonds with thymine.

This rule states that adenine can ONLY bind to thymine, and guanine can ONLY bind to guanine. Therefore, adenine on one strand will be complementary to thymine on the second strand, and the same goes for cytosine and guanine. If one strand is positioned in 5’ to 3’ direction, the other strand is positioned in 3’ to 5’ direction. Therefore, options A, B, and D are incorrect.

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aggiegal

Aggiegal

Answered on Apr 16, 2018

3 taccagtca 3
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