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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Cytosine makes up 38% of the nucleotides in a sample of DNA from an organism. approximately what percentage of the nucleotides in this sample will be thymine?
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12
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24
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31
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38
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Explanation:
Detailed explanation-1: -Therefore, thymine makes up 12% of the DNA sample.
Detailed explanation-2: -Thymine (T) makes up 28% of the nucleotides in a sample of DNA from an organism.
Detailed explanation-3: -Answer: There would be 20% Cytosine. Adenine (30%) = Thymine (30%)
Detailed explanation-4: -In a DNA molecule cytosine is 18%.
Detailed explanation-5: -Chargaff’s rules explained that adenine always pairs with thymine and cytosine always pairs with guanine in a DNA molecule. Since adenine pairs with thymine, for every adenine base there will also be one thymine base. Thus, a sample with 15% adenine must also have 15% thymine.
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