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Agriculture · Q366

Genetics And Plant Breeding

Graduate and Post Graduate · Agriculture · question 366

Q366

The histones of DNA are synthesized in

A.
G1 phase
B.
G2 phase
C.
S phase
Answer
D.
G0 phase

Answer: Option C

Solution

Answer: Option C
Solution:
The histones of DNA are synthesized in the S phase.
The new histones are made in the cytoplasm during the S phase and are transported into the nucleus. It is deposited by chromatin assembly factors or histone chaperones on replicating DNA to form chromatin in a process known as chromatin assembly.
The old histones are disassembled from DNA, presumably shielded and chaperoned until they are reassembled into nucleosomes.