Question

Which of the following nitrogenous base is not found in DNA
a. Adenine
b. Thymine
c. Guanine
d. Uracil

Answer 1

Answer:

Uracil is the nitrogenous base is not found in DNA.

Answer 2

Dear Student,

◆ Answer -

(d) Uracil

◆ Explanation -

• DNA is an organic molecule that is composed of phosphate group, sugar group and nitrogen base.

1) Phosphate group -

• It's phosphorus atom bound to 4 oxygen atoms.

2) Sugar group -

• This is deoxyribose sugar in DNA.

3) Nitrogen base -

• DNA contains nitrogen bases adenine, guanine, cytosine and thiamine.

Thanks dear. Hope this helps..