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Question

The complimentary DNA strand for CGATGGCTA is

A
CGATGGCTA
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B
GCTACCGAT
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C
UAGCCAUCG
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D
CGTAGGCAT
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E
ATCGGTAGC
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Solution

The correct option is B GCTACCGAT
Nitrogenous bases follow complimentary bases pairing. Adenine of one DNA strand is paired with thymine of another strand in the same plane while guanine is paired with cytosine. Accordingly, the complimentary DNA strand for the given segment would be GCTACCGAT. Thus, the correct answer is B.

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