A wrestler develops large muscles by exercising throughout life. Why will his children not be born with large muscles?
Answer and explanation
Correct answer: Because it is an acquired trait and does not necessarily change genes
Muscle enlargement caused by continuous exercise is an acquired modification of the wrestler’s body. It may change muscle size and strength in his somatic cells, but it does not normally change the genes in his sperm-producing cells. Inheritance transfers genetic information through reproductive cells, not the effects of ordinary training. Thus option A is correct. Muscles can grow, children inherit traits from both parents, and exercise does not destroy chromosomes.
Frequently asked questions
What is the correct answer to this question?
Because it is an acquired trait and does not necessarily change genes
Why is this the correct answer?
Muscle enlargement caused by continuous exercise is an acquired modification of the wrestler’s body. It may change muscle size and strength in his somatic cells, but it does not normally change the genes in his sperm-producing cells. Inheritance transfers genetic information through reproductive cells, not the effects of ordinary training. Thus option A is correct. Muscles can grow, children inherit traits from both parents, and exercise does not destroy chromosomes.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Inheritance.
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