CELL DIVISION
MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Down Syndrome
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monosomy
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diploid syndrome
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trisomy
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Turner’s Syndrome
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Detailed explanation-1: -If homologous chromosomes fail to separate during meiosis I, the result is two gametes that lack that particular chromosome and two gametes with two copies of the chromosome.
Detailed explanation-2: -Turner syndrome occurs when part or all of an X chromosome is missing from most or all of the cells in a girl’s body. A girl normally receives one X chromosome from each parent. The error that leads to the missing chromosome appears to happen during the formation of the egg or sperm.
Detailed explanation-3: -Chromosome segregation errors result in aneuploid or polyploid cells and are generally detrimental to both the cell and the organism. However, in some instances, changes in ploidy are programmed in normal development and physiology.
Detailed explanation-4: -These findings suggest that most problems related to loss of a sex chromosome in Turner syndrome occur during the pairing of the X and Y chromosomes during paternal meiosis.