The appearance of new combinations in a dihybrid cross supports which principle?
Answer and explanation
Correct answer: Independent assortment
A dihybrid cross follows two pairs of contrasting traits at the same time. Mendel’s principle of independent assortment states that, during gamete formation, the allele pair for one trait is distributed independently of the allele pair for another trait, when the relevant conditions apply. This produces combinations not seen in the original parents. Therefore option A is correct; blending, acquired-trait inheritance and chromosome destruction do not explain the result.
Frequently asked questions
What is the correct answer to this question?
Independent assortment
Why is this the correct answer?
A dihybrid cross follows two pairs of contrasting traits at the same time. Mendel’s principle of independent assortment states that, during gamete formation, the allele pair for one trait is distributed independently of the allele pair for another trait, when the relevant conditions apply. This produces combinations not seen in the original parents. Therefore option A is correct; blending, acquired-trait inheritance and chromosome destruction do not explain the result.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Inheritance.
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