Embryo aneuploidy rates reach 90% by age 43-45. Group of answer choices True False
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Case: Consider the case whereby during spermatogenesis secondary non-disjunction affected four chromosomes (1, 4, 8, 18) of one daughter cell; and, during oogenesis secondary non-disjunction affected three chromosomes (7, 18, 21) of two daughter cells. Answer the next questions based on the case. What is the percentage probability that a zygote resulting from the union will be uniparentally disomic of paternal origin? * 25% 12.5% 6.25% 50% Will there be normal diploid gametes of maternal lineage? * Maybe No Unknown Yes Arranged in decreasing order, what is the distribution pattern of the maternal gametes? * 27-23-23-19 26-23-23-20 24-23-23-22 25-23-23-21 How many genomically distinct blocks of zygotes are expected to result from the union? * Four Nine Six Two What percentage of the possible progeny will be expected to manifest quadruple monosomy? * 25% 50% 12.5% 6.25% What is the highest number of chromosomes that can be formed among the gametes in the paternal line? * 28 27 23 25 What is the percentage probability that a zygote resulting from the union will be normal? * 25% 100% 12.5% 50% Will there be excess chromosomes in the gametes that will be formed of maternal lineage? * Yes Unknown No Maybe What is the lowest number of chromosomes that can be formed among the gametes in the maternal line? * 23 18 27 19 What percentage of the possible progeny will be expected to have monosomy in five chromosomes and nullisomy in a chromosome? * 6.25% 12.5% 50% 75%
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In a twenty year old unmarried female who has never conceived and whose age of attainment of puberty was at twelve years. Approximately how many ovum would have been formed till date - A. 48 - 60 B. 96 - 100 C. 192 - 200 D. None of these
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A diploid species has a total of 40 chromosomes. How many chromosomes would be found in a monosomy, trisomy, and autotriploid? 39; 41; 60 51; 53; 104 51; 53; 78 41; 39; 60 51; 78; 53 Individuals with Down syndrome, Turner syndrome, or Klinefelter syndrome are aneuploid. True False
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