# Answer to Question #44858 in Molecular Biology for Souvik

Question #44858

1)Adenine is 30%.What would be percentage of guanine?

A)10% B)20% C)30% D)40%

2)In a DNA molecule cytosine is 18%.Percentage of adenine would be-

A)32% B)64% C)36% D)18%

3)Total amount of A and T in DNA is 45%.Amount of Guanine will be-

A)22.5% B)27.5% C)45% C)55%

4)In a DNA molecule Adenine is 31% and Guanine is 40%.What would be percentage of cytosine?

A)19% B)40% C)36% D)50%

Please explain easily.

A)10% B)20% C)30% D)40%

2)In a DNA molecule cytosine is 18%.Percentage of adenine would be-

A)32% B)64% C)36% D)18%

3)Total amount of A and T in DNA is 45%.Amount of Guanine will be-

A)22.5% B)27.5% C)45% C)55%

4)In a DNA molecule Adenine is 31% and Guanine is 40%.What would be percentage of cytosine?

A)19% B)40% C)36% D)50%

Please explain easily.

Expert's answer

1) Adenine is 30%.What would be percentage of guanine?

A) 10% B)20% C)30% D)40%

100-30-30=40, so the percentage of G is 40/2=20%.

2) In a DNA molecule cytosine is18%.Percentage of adenine would be-

A) 32% B)64% C)36% D)18%

100-18-18=64, so the percentage of A is 64/2=32%.

3) Total amount of A and T in DNAis 45%.Amount of Guanine will be-

A)22.5% B)27.5% C)45% C)55%

4) In a DNA molecule Adenine is 31% and Guanine is 40%.What would be percentage

of cytosine?

A)19% B)40% C)36% D)50%

A) 10% B)20% C)30% D)40%

**Answer: B**. The percentage of T isequal to the percentage of A, 30%. Total percentage of total C and G is100-30-30=40, so the percentage of G is 40/2=20%.

2) In a DNA molecule cytosine is18%.Percentage of adenine would be-

A) 32% B)64% C)36% D)18%

**Answer: A**. The percentage of G isequal to the percentage of C, 18%. Total percentage of total A and T is100-18-18=64, so the percentage of A is 64/2=32%.

3) Total amount of A and T in DNAis 45%.Amount of Guanine will be-

A)22.5% B)27.5% C)45% C)55%

**Answer: B**. Total amount of C and Gis 100-45=55%, the amount of G is 55/2=27.5%.4) In a DNA molecule Adenine is 31% and Guanine is 40%.What would be percentage

of cytosine?

A)19% B)40% C)36% D)50%

**Answer: B**. The percentage of C is equal to the percentage of G, 40%.Need a fast expert's response?

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