Principle Of Inheritance And Variation Question 40
Question: How many nucleosomes are found in helical coil of 30 nm chromatin fibre [RPMT PMT 2000]
Options:
A) 10
B) 12
C) 06
D) 09
Show Answer
Answer:
Correct Answer: C
Solution:
According to Radial loop model.
Each chromosome has one or two interconnected scaffolds made of non-histone chromosomal proteins.
The scaffold bears a large member of lateral loop all over it.
Each lateral loop is 30 nm thick fibre similar to chromatin fibre.
It develops through solenoid coiling of nucleosome chain with about six nucleosomes per turn.
BETA
