Why do offspring show slight differences from their parents?
Answer and explanation
Correct answer: Small changes can occur while genetic material is copied
During reproduction, genetic material must be copied and passed to the next generation. Copying is generally accurate, but small errors or changes can occur, producing heritable variation. Sexual reproduction can also combine genetic material from two parents, increasing differences among offspring. These variations may later be acted upon by natural selection. Therefore option A explains the difference; the other options either contradict observed variation or describe unrelated environmental conditions.
Frequently asked questions
What is the correct answer to this question?
Small changes can occur while genetic material is copied
Why is this the correct answer?
During reproduction, genetic material must be copied and passed to the next generation. Copying is generally accurate, but small errors or changes can occur, producing heritable variation. Sexual reproduction can also combine genetic material from two parents, increasing differences among offspring. These variations may later be acted upon by natural selection. Therefore option A explains the difference; the other options either contradict observed variation or describe unrelated environmental conditions.
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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