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42 votes
42 votes
A DNA sequence reads: ACAGTCGATGCA. Which of the following is the correct complementary DNA strand?

CACTGATCGTAC
GTGACTAGCATG
TGTCAGCTACGT
UGUCAGCUACGU

User Raja Khoury
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3.0k points

2 Answers

13 votes
13 votes

Answer:

C. TGTCAGCTACGT

Step-by-step explanation:

In Chargaff's Rule (or the Complementary base pairing rule):

~ Adenine (A) pairs with Thymine (T)

~ Cytosine (C) pairs with Guanine (G)

Because of this rule, with one strand of DNA already having the sequence of ACAGTCGATGCA, The other strand of DNA can only be a sequence that pairs the nitrogenous bases with their assigned pair/base.

Thus, the answer being TGTCAGCTACGT

User Ram Patra
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2.7k points
13 votes
13 votes

Answer:

its C) TGTCAGCTACGT

User Sajib Acharya
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2.9k points