Given below are certain biological terms. Write a single collecting term for each group.
Adenine, thymine, cytosine and guanine.
Answer: Nitrogenous bases
∙ Four different types of nitrogenous bases are found in DNA: adenine (A), thymine (T), cytosine (C), and guanine (G).
∙ These nitrogen bases form pairs with their complementary bases.
A T and C G.