Chromosome, DNA and gene — task. Science State Board, Class 10.

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Find out, whether the given statement is true or false and give justification for the same:

1. RBCs don’t have chromosomes.

This statement is

In RBCs characteristic chromatin folds forms chromosomes
RBCs have no nucleus

2. The pairing of nitrogenous bases is quite specific. It always occurs between purine and pyrimidine, which are joined together by nitrogen bonds.

This statement is

The pairing of nitrogenous bases always occurs between purine and pyrimidine, which are joined together by hydrogen bonds.
Thymine (T) is linked to Adenine (A) via two nitrogen bonds (A = T). Guanine (G) is linked to Cytosine (C) by three nitrogen bonds (C ≡ G).

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