Question

A double stranded DNA has 20 coils with 60 nucleotides of Adenine. Find out the number of cytosine bases?

140 nucleotides
70 nucleotides
280 nucleotides
35 nucleotides​

Answer 1

Answer:

Total base pair = 20×10= 200 bp

Adenine =60nucleotides

Thymine = 60 nucleotides

so , A=T=60 bp

therefore , G=C = 200-60bp = 140 bp

So , Cytosine = 140 nucleotides

Hence correct ans is 140 nucleotides.

Answer 2

Answer:

When a double-stranded DNA has 20 coils with 60 nucleotides of Adenine, the number of cytosine bases will be 140 nucleotides.

Explanation:

Number of base-pair per coil = 10

Total number of coils = 20

Total number of base-pairs = 20×10=200

Number of Adenine (A) = Number of Thymine (T) = 60

Number of Cytosine (C) = Number of Guanine (G) = 200-60 = 140

Therefore, number of cytosine bases = 140 nucleotides