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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In a strand of DNA, if it contains 20% of Thymine, then how much Guanine would be present?
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30%
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20%
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80%
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10%
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Explanation:
Detailed explanation-1: -Answer and Explanation: A double-stranded DNA molecule with 20% thymine would contain 30% guanine.
Detailed explanation-2: -✧ You have 30 Guanine and so there are 30 Cytosine . So there are remaining 40 adenine and thymine .
Detailed explanation-3: -The remaining 60% represents both G + C molecule. Since cytosine and guanine are always present in equal numbers, the percentage of guanine molecule is 30%.
Detailed explanation-4: -It means the amount of guanine will be equal to cytosine and the amount of adenine will be equal to thymine. In the given problem, adenine is 20%. Hence, thymine will be 20%. So the percentage of cytosine and guanine will be 30% each.
There is 1 question to complete.