Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

The formation of chiasma(ta) is an important feature of meiotic divisions because it
Options
A ensures that the same genetic characteristics appear in daughter cells as in the parents.
B provides opportunities for new genotypes to arise.
Correct Answer
C prevents homologous chromosomes from pairing
D occurs among non sister chromatids of homologous chromosomes.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Chiasmata are the visible manifestations of crossing over, the exchange of genetic material between non-sister chromatids of homologous chromosomes. This process creates new combinations of alleles on a chromosome, which is a major source of genetic variation and leads to new genotypes in the offspring.

Hint

Does crossing over create new gene combinations, or preserve the old ones?

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1122 of 2556
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