Along a 22500bp segment of DNA approximately how many molecu

Along a 22,500-bp segment of DNA, approximately how many molecules of H2A protein do you expect to find? Assume there are 150bp between each nucleosome.

a) 75

b) 50

c) 150

d) 100

e) 25

f) 1

g) 200

Solution

Ans c 150

Histone protein H2A is one of the 5 main histone proteins involved in packaging of chromatin material in the eukaryotic cell.

H2A is a core protein that is constituted by nucleosome per 150 bp ( as mentioned in the question) of DNA

SO molecules od H2A = 22500/ 150 = 150