Question

Deven is examining the DNA evidence from a suspect. Deven observes an adenine base in the suspect’s DNA. What can Deven MOST likely predict about the suspect’s DNA based on this observation?

A.
Their DNA sequence will be AG, AG, CT, CT.

B.
Their adenine will bond with thymine.

C.
There will be no guanine in their DNA.

D.
They will have AT bonds but no CG bonds.

Answer 1

The answer should be B. Adenine always binds with thymine in DNA

Answer 2

Based on this observation, Deven MOST likely can predict about the suspect’s that their adenine will bond with thymine (Option B).

• Deoxyribonucleic acid (DNA) is a double helix composed of two long strands of nucleotides linked by hydrogen bonds.

• In DNA, there are four kinds of nucleotides, each containing one different nitrogenous base: Thymine, Adenine, Cytosine, and Guanine.

• According to the complementary base pair rules, Guanine pairs with Cytosine, while Thymine pairs with Adenine.

In conclusion, based on this observation, Deven MOST likely can predict about the suspect’s that their adenine will bond with thymine (Option B).

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