A process that results in the doubling of chromosome number in an otherwise infertile hybrid.

PATTERNS OF EVOLUTION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	non-disjunction
B	Mitosis
C	Disjunction
D	Meiosis

Explanation:

Detailed explanation-1: -Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells.

Detailed explanation-2: -Nondisjunction is the failure of the chromosomes to separate, which produces daughter cells with abnormal numbers of chromosomes. [

Detailed explanation-3: -Disjunction takes place again in Anaphase II of meiosis, when the sister chromatids separate and move to the opposite poles. To compare this with non-disjunction is when this process of separation of chromatids (mitosis) and homologous chromosomes (meiosis) fails to occur.

Detailed explanation-4: -If nondisjunction occurs in meiosis II, two of the four products will be unaffected by the event and two of the products will be abnormal. One abnormal product will have an extra chromosome, and the other abnormal product will be missing that chromosome.

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