Polyploid organisms of a normally diploid species are often sterile because: tetraploids are not sterile some of the chromosomes cannot synapse during mitosis none of the chromosomes can synapse during meiosis all the homologous chromosomes attempt to synapse together during meiosis

In regards to MEIOSIS, give the order of the following events in terms of chromosome number.   Question 8 options:   meiosis 2 and cytokinesis   a total of four cells, each containing 23 chromosomes   one cell containing 46 chromosomes   meiosis 1 and cytokinesis   one cell containing 92 chromosomes   two cells containing 46 chromosomes

What is the purpose of meiosis? In other words, why create haploid cells?

If an organism has a total diploid chromosome number of 18, how many chromosomes will be in a single gamete? 54 9. 18 36

Which of the following differentiates meiosis from mitosis? mitosis is used for the repair of cells, whereas meiosis creates cells for sexual reproduction.   In mitosis four identical daughter cells are produced, whereas two genetically different cells are produced in meiosis   meiosis is a form of asexual division, whereas mitosis is a form of sexual division   mitosis occurs in prokaryotic cells, whereas meiosis occurs in eukaryotic cells

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

An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B C D E F A • B C V W X R ST • U D E F R ST • U V W X Q. Draw a picture of these chromosomes pairing in prophase I of meiosis.

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: