LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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15%
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30%
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35%
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50%
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Detailed explanation-1: -Since adenine is 20%, then thymine is 20% as well. The total of both is 40%. From 100 remains 60% which is divided equally between guanine and cytosine, so each is 30%. Uracil is not found in DNA but it will have the same percentage as thymine, i.e the RNA will have 30% uracil.
Detailed explanation-2: -Answer and Explanation: The correct answer is c. The percentage of adenine and thymine are always the same, which means that 20% plus 20% = 40%. Since 40% of the DNA is made up of adenine-thymine pairs, that leaves 60% of the DNA remaining as cytosine-guanine pairs.
Detailed explanation-3: -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-4: -Answer: There would be 20% Cytosine. Adenine (30%) = Thymine (30%) Guanine (20%) = Cytosine (20%)