BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a DNA molecule is 22% adenine in any organism, which percentage of thymine will that DNA molecule contain?
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22%
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28%
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44%
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56%
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Explanation:
Detailed explanation-1: -Adenine always pairs with thymine, so their percentages will be equal. Cytosine always pairs with guanine, so their percentages will also be equal. The sum of all four percentages must equal 100%. We know that the sample is 22% adenine; this tells us it is also 22% thymine.
Detailed explanation-2: -Answer and Explanation: If a double strand is 22% guanine, then automatically we know that there will be 22% cysteine.
Detailed explanation-3: -Answer and Explanation: A double-stranded DNA molecule with 20% thymine would contain 30% guanine.
Detailed explanation-4: -In a typical DNA molecule, the proportion of thymine is 30% of the N bases.
There is 1 question to complete.