PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During mitosis
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During anaphase 1
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During anaphase 2
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During metaphase 1
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Detailed explanation-1: -This condition is caused due to the error in cell division. The improper segregation of chromosomes or nondisjunction during anaphase II of sperm formation can result in an extra copy of the Y chromosome. This cell-division error can happen prior to conception in either the mother’s or father’s reproductive cells.
Detailed explanation-2: -XYY syndrome is a rare chromosomal disorder that affects males. It is caused by the presence of an extra Y chromosome. Males normally have one X and one Y chromosome. However, individuals with this syndrome have one X and two Y chromosomes.
Detailed explanation-3: -The typical behavior of chromosomes in meiosis is that homologous pairs synapse, recombine, and then separate at anaphase I. At anaphase II, sister chromatids separate.