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Abhishek Anand

Class 11th
Biology
2 years ago

What is a centromere? How does the position of centromere form the basis of classification of chromosomes.Support your answer with the position of centromere on different types of chromosomes.

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Muskan Anand

2 years ago

Centromere is a constriction gift at the chromosomes wherein the chromatids are held together. Chromosomes are divided into 4 sorts primarily based totally on the placement of the centromere. (i) Metacentric chromosome The chromosomes wherein the centromere is gift withinside the center and divides the chromosome into same arms is called a metacentric chromosome.(ii) Sub-metacentric chromosome The chromosome wherein the centromere is barely farfar from the center place is referred to as a sub-metacentric chromosome. In this, one arm is barely longer than the opposite.(iii) Acrocentric chromosome The chromosome wherein the centromere is positioned near one of the terminal ends is called an acrocentric chromosome. In this, one arm is extraordinarily lengthy and the opposite is extraordinarily short.(iv) Telocentric chromosome The chromosome wherein the centromere is positioned at one of the terminal ends is called a telocentric chromosome.

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