Question

Types of chromosomes based on the position of centromere

Answer 1

(1). Telocentric chromosomes

(2). Acrocentric chromosomes

(3). Sub-metacentric chromosomes

(4). Metacentric chromosomes


(1). Telocentric chromosome

Ø In telocentric chromosomes, the centromere is located at the proximal end (tip) of the chromosome.

(2). Acrocentric

Ø The centromere is positioned at one end of the chromosome in such a way that it produces a very short arm (p) and an exceptionally long arm (q).

(3). Sub-metacentric

Ø The centromere is located near the centre of the chromosome (NOT in the exact centre).

(4). Metacentric

Ø The centromere is located exactly at the centre of the chromosome.