Chromosomes

Question 1

Introduction to chromosomes

Answer 1

during different stages of cell division, cells show structured chromosomes in place of nucleus

Question 2

What does chromatin contains?

Answer 2

-chromosomes contains DNA
-and some proteins called histones
-also some non- histone proteins

Question 3

what is primary constriction?

Answer 3

every chromosome has primary constriction known as centrosome, on its sides are disc shaped structure present as kinetochore

Question 4

Are the primary cell constrictions always available in the cell?

Answer 4

No visible, only during the cell division

Question 5

Based on the position of centromere chromosomes can be classified into?

Answer 5

1.metacentric- middle centromere, forming two equal arms
2.sub-metacentric: slightly away from middle forming one short and one longer
3. acrocentric: centromere is present close to end one is extremely short and another is long arm
4.telocentric: terminal centromere