Question

Question 22:
(a) State one advantage of variation to a species.
(b) What are sex chromosomes ? How many sex chromosomes are there ? Name them.

Lakhmir Singh Biology Class 10

Answer 1

Hii@@ dear here is ur answer ______

a) is that it increases the chances of its survival in a changing environment.

b) which determine the sex of persone called " sex chromosomes " .

two types of chromosomes are ....

☆ X chromosomes
☆ Y chromosomes

______________DEAR☺.
I HOPE ITS HELPFUL
THANKS

Answer 2

a) The advantage of variation is that organisms are genetically different and the one which bests fits the adverse environment survives.

b) The sex chromosomes are those chromosomes which are passed from parents to offspring these determines the gender of the offspring. There are two sex chromosomes X and Y.

Explanation:

• The variations helps the organisms to attain adaptation in the changing environment and raises their chances of survival.
• There are 23 pairs of chromosomes in a human being out of which the 22 pairs are called as autosomes and 1 pair is called as the sex chromosomes. The sex chromosomes in combination of transferred from each parent like X chromosome from mother as well as father produce a progeny of female whereas that of a combination of Y produces a male.

Learn more about sex chromosomes:

(a) State one advantage of variation to a species.

(b) What are sex chromosomes ? How many sex chromosomes are there ? Name them.:https://brainly.in/question/3392816