THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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14%
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28%
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36%
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64%
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Detailed explanation-1: -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.
Detailed explanation-2: -We know that the sample is 35% adenine, which tells us that it is also 35% thymine. We know that cytosine and guanine pair together and will be present in equal amounts, so we can divide this final total by 2 to find our answer. The sample is 35% adenine, 35% thymine, 15% guanine, and 15% cytosine.
Detailed explanation-3: -So, for this DNA sequence, C + G = 60%. The remaining 40% of the sequence must consist of A-T pairs (adenine-thymine). Therefore, 20% of the sequence is made up of adenine, and 20% of the sequence is made up of thymine.
Detailed explanation-4: -In any double stranded DNA the number of guanine units equals the number of cytosine units and the number of adenine units equals the number of thymine units. The composition of DNA varies from one species to another. Since adenine is 20%, then thymine is 20% as well. The total of both is 40%.
Detailed explanation-5: -If a double stranded DNA has 20% Thymine, the percentage of Guanine in the DNA. No worries!