Question

Which one of the following pairs of nitrogenous
bases of nucleic acids, is wrongly matched with
the category mentioned against it?
(a) Thymine, Uracil - Pyrimidines
(b) Uracil, Cytosine - Pyrimidines
(c) Guanine, Adenine - Purines
(d) Adenine, Thymine - Purines

Answer 1

Answer:

the required answer is (b)...

Answer 2

Wrongly matched pair with respect to nitrogenous base is - (d) Adenine, Thymine - Purines

DNA is the genetic material made up of sugar, nitrogenous bases and phosphates.

Nitrogenous bases are of five types - adenine, thymine, cytosine, uracil and guanine.

Adenine, thymine, cytosine and guanine are four bases found in DNA.

They are categorised into two types, based on their structure.

The two ringed structures are named purines and they are adenine and guanine.

One ringed structure are named pyrimidines which are cytosine and thymine.