Question

A nitrogen base sequence for a piece of one of the strands of DNA molecule is AAATTCGCGTCGCGAT. Indicate the complementary bases on the DNA.

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Answer 1

Given:

A nitrogen base sequence for a piece of one of the strands of DNA molecule is AAATTCGCGTCGCGAT.

To find:

Complementary base on the other DNA strand.

Solution:

In any DNA strand, the complimentary nitrogenous bases are:

• Adenine (A) = Thymine (T)

• Cytosine (C) $\equiv$ Guanine (G)

The middle signs between the bases denote the number of hydrogen bonds between the bases.

So, the complimentary base will be as:

AAATTCGCGTCGCGAT

TTTAAGCGCAGCGCTA

$\uparrow \\ (complimentary \: strand)$

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