If a cell has a diploid number of 12 chromosomes before meiosis I and meiosis II, how many chromosomes will be in each of the four daughter cells if one pair of chromatids experiences second-division nondisjunction during meiosis II. Explain your answer.

During metaphase I of meiosis, tetrads align along the metaphase plate independently of each other. Therefore, there is a random “shuffle” of maternal and paternal chromosomes in the resulting gametes.The following diagram demonstrates how this works in a diploid cell with four chromosomes . Because there are two pairs of chromosomes and each pair can align in one of two ways during metaphase I, the number of possible variations in the gametes produced is , or .For an organism that is , there are three pairs of chromosomes, so the number of possible variations in the gametes produced due to independent assortment in metaphase I is , or . In an organism with a haploid number of , how many possible combinations of maternal and paternal chromosomes can occur in its gametes? Select one: a. 72=49 b. 27=128 c.17=1 d. 214=16 384

Determine if the cells in prophase I of meiosis are haploid or diploid.

The mosquito, Aedes aegypti, has 3 bivalents (homologous pairs) formed at Meiosis I. How many chromosomes and chromatin strands are present in each of the following stages:

Down's syndrome occurs when either the sperm or the ovum has too many chromosomes. This usually occurs as a result of chromosomes not separating properly in meiosis. Draw what the four reproductive cells would look like if the chromosomes failed to separate in meiosis II. How many of the reproductive cells would be normal?

Sister chromatids normally separate during which of the following phases of division?   a Mitosis; Meiosis II b Meiosis II; Mitosis c Meiosis II ONLY d Meiosis I ONLY