Q. 35.0( 2 Votes )

Correct the following statements if there is any mistake.

(a) The four nitrogenous bases in the DNA are Guanine, Thiamine, Adrenaline, and Cytosine.

(b) Genes are specific sequences of bases on a chromosome.

(c) A nucleotide is composed of a sulphate, a sugar (pentose) and a nitrogenous base.

(d) Nucleosome is group of cysteine molecules surrounded by DNA strands.

(e) If there are 46 chromosomes in a cell, there will be 23 chromatin fibers inside the nucleus during interphase.

Answer :

(a) The four nitrogenous bases in the DNA are Guanine, Thymine, Adenine, and Cytosine.

(b) Genes are specific sequences of nucleotides on a chromosome.


(c) A nucleotide is composed of a phosphate, a sugar (pentose) and a nitrogenous base.


(d) Nucleosomes are groups of histone molecules surrounded by DNA strands.


(e) If there are 46 chromosomes in a cell, there will be 46 chromatin fibers inside the nucleus during interphase.


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