While analysing the DNA of an organism a total number of 5386 nucleotides were found out of which the proportion of different bases were:
While analysing the DNA of an organism a total number of 5386 nucleotides were found out of which the proportion of different bases were: Adenine = 29%, Guanine = 17%, Cytosine = 32%, Thymine = 17%. Considering the Chargaff’s rule it can be concluded that:
a. it is a double stranded circular DNA
b. It is single stranded DNA
c. It is a double stranded linear DNA
d. No conclusion can be drawn
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C) It is single stranded DNA
Explanation:
For a double stranded DNA molecule, Chargaff rule is valid.
First we have to check whether Chargaff rule if followed or not.
Acc. to Chargaff rule,
A=T and G=C
But in this ques, there are different percentages.
So it cannot be a double-stranded DNA.
So answer is single stranded DNA
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