If a person strengthens muscles through lifelong exercise, why will this change not pass directly to offspring?
Answer and explanation
Correct answer: Because it is an acquired body change, not hereditary information in the gametes
The governing distinction is between somatic changes and heritable changes. Exercise can enlarge or strengthen muscle cells in the individual’s body, but this acquired modification usually does not alter the DNA in the sperm or ova that form the next generation. Since it is not encoded in gametes, it is not directly transmitted to offspring. Therefore option A is correct; B is false, and C and D make unsupported or impossible claims.
Frequently asked questions
What is the correct answer to this question?
Because it is an acquired body change, not hereditary information in the gametes
Why is this the correct answer?
The governing distinction is between somatic changes and heritable changes. Exercise can enlarge or strengthen muscle cells in the individual’s body, but this acquired modification usually does not alter the DNA in the sperm or ova that form the next generation. Since it is not encoded in gametes, it is not directly transmitted to offspring. Therefore option A is correct; B is false, and C and D make unsupported or impossible claims.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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