How does an offspring receive chromosomes from mother and father?
Answer and explanation
Correct answer: Half come from mother and half from father
The governing principle is sexual reproduction and chromosome inheritance. The mother’s ovum and the father’s sperm are haploid, so each contributes 23 chromosomes. At fertilisation, 23 + 23 = 46 chromosomes in the zygote, giving the offspring one set from each parent. Therefore option C is correct. Options A and B wrongly assign the entire set to one parent, and food does not supply chromosomes.
Frequently asked questions
What is the correct answer to this question?
Half come from mother and half from father
Why is this the correct answer?
The governing principle is sexual reproduction and chromosome inheritance. The mother’s ovum and the father’s sperm are haploid, so each contributes 23 chromosomes. At fertilisation, 23 + 23 = 46 chromosomes in the zygote, giving the offspring one set from each parent. Therefore option C is correct. Options A and B wrongly assign the entire set to one parent, and food does not supply 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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