In double-stranded DNA, 13% of the strand is found to be adenine. How much would you expect cytosine to be present?
74%
37%
26%
13%
Answers
In a double stranded DNA 13% of the strength is found to be adenine hence 37% of the strand is expected to be cytosine.
Option: (b)
Explanation:
- In a double stranded DNA there are usually four nitrogenous bases are present.
- They are adenine guanine thymine and cytosine. Adenine and guanine are nitrogenous purine and cytosine and nitrogenous pyrimidine bases.
- In a DNA double strand adenine binds with thymine and cytosine binds with guanine.
- As a result the amount of adenine is equal to the amount of thiamine.
- Similarly the amount of guanine is equal to the amount of cytosine.
- Hence is the amount of adenine is equal to 13% the amount of of thymine is also equal to 13% similarly the amount of guanine and cytosine are both equal to 37%.
To know more about nitrogenous bases in DNA,
Name the four nitrogenous bases in DNA molecule. Brainly.in
https://brainly.in/question/14420126
The amount of cytosine will be 37%
Explanation:
According to Chargaff's rule ,
In case of double stranded DNA,the amount of adenine is equal to the amount of thymine and the amount of cytosine is equal to the amount of guanine.
A=T and G≡C
If, the amount of adenine is 13% then the amount of Thymine is also 13%
then the amount of total guanine and cytosine is=100-(13+13)
=100-26
=74
Then, the amount of cytosine will be=
=37%