In one polynucleotide strand of a DNA molecule the ratio of A + T/G + C is 0.3. What is the A + G/T + C ratio of the entire DNA molecule

Question

In one polynucleotide strand of a DNA molecule the ratio of A + T/G + C is 0.3. What is the A + G/T + C ratio of the entire DNA molecule (A) 0.3 (B) 0.6 (C) 1.2 (D) 1

Tardigrade Admin · Accepted Answer

According to Chargaff's rules (1950), purine and pyrimidine base pairs are present in equal amounts in a DNA molecule. i.e., [ A + B] = [T + C ] or ([A + G]/[T + C]) = 1.

Q. In one polynucleotide strand of a DNA molecule the ratio of $A + T / G + C$ is $0.3$ . What is the $A + G / T + C$ ratio of the entire $D N A$ molecule

$0.3$

$0.6$

$1.2$

$1$

According to Chargaff's rules $(1950)$ , purine and pyrimidine base pairs are present in equal amounts in a $D N A$ molecule.
i.e., $[A + B] = [T + C]$
or $\frac{[ A + G ]}{[ T + C ]} = 1$ .

Q. In one polynucleotide strand of a DNA molecule the ratio of A+T/G+C is 0.3. What is the A+G/T+C ratio of the entire DNA molecule

0.3

0.6

1.2

1

According to Chargaff's rules (1950), purine and pyrimidine base pairs are present in equal amounts in a DNA molecule. i.e., [A+B]=[T+C] or [T+C][A+G]​=1.

Q. In one polynucleotide strand of a DNA molecule the ratio of $A + T / G + C$ is $0.3$ . What is the $A + G / T + C$ ratio of the entire $D N A$ molecule

$0.3$

$0.6$

$1.2$

$1$

According to Chargaff's rules $(1950)$ , purine and pyrimidine base pairs are present in equal amounts in a $D N A$ molecule.
i.e., $[A + B] = [T + C]$
or $\frac{[ A + G ]}{[ T + C ]} = 1$ .