Question

Consider the following four statements (a-6) and H._ select the option which includes all the correct ones only:-
(a) Ribosomes are the granular structure first observed by George Palade.
(b) Both the centrioles in a centrosome lie perpendicular to each other.
(c) A single human cell has approximately 2.2 meter long thread of DNA distributed in one chromosomes.
(d) Material of the nucleus (chromatin) stained by the only acidic dyes.

• A. a, b and c
• B. a , c and d
• C. a and b
• D. a, b and d

Answer 1

The correct option is C a and b

A single human cell has approximately 2.2-meter long thread of DNA distributed in all 46 ( not one ) chromosomes.

Material of the nucleus ( chromatin ) is stained by basic dyes.

Hence, statement (c) and (d) are incorrect.

So, the correct option is 'a and b'.