How can a recessive trait remain in a population even when it often does not appear?
Answer and explanation
Correct answer: It can pass through generations in hidden form with a dominant form
The governing concept is allele masking in a heterozygous genotype. When a recessive allele is paired with a dominant allele, the dominant phenotype may appear, so the recessive trait is not visible. However, the recessive allele remains in the DNA and can enter gametes. If two carriers reproduce, their offspring may inherit two recessive copies and express the trait. Thus option A is correct.
Frequently asked questions
What is the correct answer to this question?
It can pass through generations in hidden form with a dominant form
Why is this the correct answer?
The governing concept is allele masking in a heterozygous genotype. When a recessive allele is paired with a dominant allele, the dominant phenotype may appear, so the recessive trait is not visible. However, the recessive allele remains in the DNA and can enter gametes. If two carriers reproduce, their offspring may inherit two recessive copies and express the trait. Thus option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Our Environment. Topic: Food chain and food web.
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