THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
30%
|
|
|
40%
|
|
|
20%
|
|
|
15%
|
Detailed explanation-1: -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-2: -Answer and Explanation: A double-stranded DNA molecule with 20% thymine would contain 30% guanine.
Detailed explanation-3: -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.
Detailed explanation-4: -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%.