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A DNA with unequal nitrogen bases would most probably be

1. single stranded
2. double stranded
3. triple stranded
4. four stranded

Correct answer: single stranded

Solution

In double-stranded DNA, complementary base pairing requires equal amounts of paired bases overall, so unequal nitrogen base composition suggests the strand is not fully paired. A single strand can have any base proportions because it is not constrained by complementary pairing.

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