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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16%
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32%
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34%
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68%
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Detailed explanation-1: -34% will be in the same strand of the DNA which will be made up of thymine. Explanation: According to Chargaffs law the amount of of purine bases in the DNA strand will be equal to the number of the Pyramid in bases which are present in the DNA strand.
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: -If a double stranded DNA has 20% Thymine, the percentage of Guanine in the DNA. No worries!