How is the idea that trait information exists in two copies made clear by Mendel's experiments?
Answer and explanation
Correct answer: Offspring receive one copy of information for each trait from each parent
The governing concept is the paired-allele model of inheritance. In sexual reproduction, each parent forms gametes carrying one allele for a trait. At fertilisation, the offspring receives one allele from the mother and one from the father, restoring a pair. For example, Tt may result from T supplied by one parent and t by the other, allowing dominant and recessive relationships to be observed. Therefore option A is correct; the other choices deny biparental inheritance or confuse inherited traits with acquired characteristics.
Frequently asked questions
What is the correct answer to this question?
Offspring receive one copy of information for each trait from each parent
Why is this the correct answer?
The governing concept is the paired-allele model of inheritance. In sexual reproduction, each parent forms gametes carrying one allele for a trait. At fertilisation, the offspring receives one allele from the mother and one from the father, restoring a pair. For example, Tt may result from T supplied by one parent and t by the other, allowing dominant and recessive relationships to be observed. Therefore option A is correct; the other choices deny biparental inheritance or confuse inherited traits with acquired characteristics.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Mendel’s laws.
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