NEETBotanyCell - The Unit of Life
Select the correct statement about the given organelle
Options
- AIt contains DNA and some acidic proteins called histones, some non-histone proteins and also RNA.
- BA single human cell has approximately two metre long threads of DNA distributed among its forty six chromosome
- CEvery chromosome (visible only in dividing cells) essentially has a primary constriction called kinetochore
- DAll of these
Correct answer
B. A single human cell has approximately two metre long threads of DNA distributed among its forty six chromosome
Step-by-step solution
Chromatin contains DNA and some basic proteins called histones, some non-histone proteins and also RNA. A single human cell has approximately two meter long threads of DNA distributed among its forty six (twenty three pairs) chromosomes. Every chromosome (visible only in dividing cells) essentially has a primary constriction or the centromere on the sides of which disc shaped structures called kinetochores are present.