THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a DNA sample has 40% CYTOSINE, how much THYMINE will it have?
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10%
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20%
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40%
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60%
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Explanation:
Detailed explanation-1: -Answer: There would be 20% Cytosine. Adenine (30%) = Thymine (30%)
Detailed explanation-2: -If 10% of the bases in a DNA are adenine, 10% of this DNA molecule must be thymine. The remaining 80% will be made up of 40% cytosine and 40% guanine since the bases pair with each other leaving a ratio of 1:4.
Detailed explanation-3: -Therefore, Guanine would be 20% and total of G+C = 40% and hence A+T would be 60% that is 30% each. Hence, option C is correct answer.
There is 1 question to complete.