Question

Compare X-chromosome and Y-chromosome.

Answer 1

X-chromosome	Y-chromosome
1. X-chromosome is straight, rod like and longer 1. than Y chromosome. It is metacentric.	1. Y-chromosome is shorter chromosome which is acrocentric.
2. X-chromosome has large amount of euchromatin and small amount of heterochromatin.	2. Y-chromosome has small amount of euchromatin and large amount of heterochromatin.
3. X-chromosome has large amount of DNA, hence it is genetically active due to more genes.	3. Y-chromosome has less amount of DNA, hence it is genetically less active or inert due to lesser genes.
4. Nonhomologous region of Xchromosome is longer and contain	4. Non-homologous region of Ychromosome is shorter and contains lesser genes.
5. Contains Xlinked genes on non-homologous region.	5. Contains Y-linked genes on nonhomologous region.
6. X-chromosome is present in men as well as women.	6. Y-chromosome is present only in men.