Why can a hidden recessive trait reappear in the second generation?
Answer and explanation
Correct answer: Because recessive information can come from both parents
A recessive allele is expressed in the phenotype only when a person receives two copies of it, one from each parent. It may remain hidden in a heterozygous first-generation individual because a dominant allele masks it. During the next cross, two recessive alleles can unite in an offspring, allowing the trait to reappear. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
Because recessive information can come from both parents
Why is this the correct answer?
A recessive allele is expressed in the phenotype only when a person receives two copies of it, one from each parent. It may remain hidden in a heterozygous first-generation individual because a dominant allele masks it. During the next cross, two recessive alleles can unite in an offspring, allowing the trait to reappear. Therefore option A is correct.
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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