The mRNA strand for the given DNA segment (CGATGGCTA ) is

GCUACCGAU

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UCTACCGUA

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GUTAUUGAT

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CGATGGCTA

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ATCGGTAGC

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Solution

The correct option is A GCUACCGAU
Nitrogenous bases follow complimentary bases pairing. Adenine of one nucleic acid strand is paired with thymine of another strand in the same plane while guanine is paired with cytosine. Thymine is replaced with uracil in RNA. So, adenine of DNA strand codes for uracil in the complimentary RNA strand. Accordingly, the complimentary DNA strand for the given segment would be GCUACCGAU. Thus, the correct answer is option A.

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