What is understood when new trait combinations appear in a dihybrid cross?
Answer and explanation
Correct answer: Information for two traits can assort independently
The governing concept is independent assortment in a dihybrid cross. Two traits are examined together, and the alleles for one trait can enter gametes independently of the alleles for the other trait, provided the genes are not tightly linked. Their recombination can produce trait combinations that were not present in the original parents. Therefore option A is correct. New combinations do not mean recessive traits are destroyed, and offspring inherit genetic information from their parents.
Frequently asked questions
What is the correct answer to this question?
Information for two traits can assort independently
Why is this the correct answer?
The governing concept is independent assortment in a dihybrid cross. Two traits are examined together, and the alleles for one trait can enter gametes independently of the alleles for the other trait, provided the genes are not tightly linked. Their recombination can produce trait combinations that were not present in the original parents. Therefore option A is correct. New combinations do not mean recessive traits are destroyed, and offspring inherit genetic information from their parents.
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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