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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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rkarthik301 rkarthik301
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12 years ago
A. G2
B. G1
C. Mitosis
D. the mitotic phase
E. the S phase
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#1
12 years ago
None of the above because gametes are sex cells, so meiosis occurs (so instead of cell cycle, its the sexual cycle).
Nondisjunction (abnormal meiosis) is the failure of tetrads to split, it holds the chromosomes together then draggs to another part without splitting chromosomes apart) -> meiosis I.
Nondisjuncton also can occur in meiosis II, when duplicated chromosomes dont split apart.
The results: missing chromosomes (monosomy) or too many chromosomes - Down syndrome (trisomy 21= 3 chromosomes #21)
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