LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

GENETICS

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

Which type of chromosome abnormality would occur from improper chromosome separation in anaphase?

A	extra, missing, or flipped sections of a single chromosome
B	entirely extra or missing chromosomes
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -The most common type of chromosomal abnormality is known as aneuploidy, an abnormal chromosome number due to an extra or missing chromosome. Most aneuploid patients have trisomy (three copies of a chromosome) instead of monosomy (single copy of a chromosome).

Detailed explanation-2: -Deletions: A portion of the chromosome is missing or deleted. Duplications: A portion of the chromosome is duplicated, resulting in extra genetic material. Translocations: A portion of one chromosome is transferred to another chromosome.

Detailed explanation-3: -1: Nondisjunction in Meiosis: Nondisjunction occurs when homologous chromosomes or sister chromatids fail to separate during meiosis, resulting in an abnormal chromosome number.

There is 1 question to complete.