If only the dominant trait appears in the first generation, what is the correct conclusion about the recessive trait?
Answer and explanation
Correct answer: It remains hidden but is not lost
In a heterozygous individual, the dominant allele determines the visible phenotype and masks the expression of the recessive allele. Masking does not remove or transform the recessive allele; it remains part of the genotype and can be transmitted to offspring. If two recessive alleles later come together, the recessive phenotype can reappear, often in the F2 generation. Thus A is correct, while B, C and D misunderstand inheritance.
Frequently asked questions
What is the correct answer to this question?
It remains hidden but is not lost
Why is this the correct answer?
In a heterozygous individual, the dominant allele determines the visible phenotype and masks the expression of the recessive allele. Masking does not remove or transform the recessive allele; it remains part of the genotype and can be transmitted to offspring. If two recessive alleles later come together, the recessive phenotype can reappear, often in the F2 generation. Thus A is correct, while B, C and D misunderstand inheritance.
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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