MAUSome Meiosis

What does not happen in prophase I?

• crossing over

• synapsis

• centrioles migrate to poles

• maternal chromosome align on 1 side, while paternal chromosomes alight on the other

What does not happen in metaphase I?

• homologous chromosomes align at equator

• chromosomes loosen to form chromatin

• spindle fibers connect from the centriole to the centromere of 1 homologue

• the centrioles are at opposite poles

What doesn't happen in telophase I?

• spindle fibers disintegrate

• centrioles form

• 2 nuclear membranes form

• homologues are at opposite poles

What doesn't happen in prophase II

• homologues undergo synapsis and cross over

• centrioles move toward poles

• spindle fibers form

• nuclear membrane breaks down

What is not true about metaphase II?

• the cell is now haploid

• homologous pairs are aligned at the equator

• centrioles are at the poles

• 2 cells are present

Humans have 46 chromosomes in their somatic (body) cells. How many chromosomes will be in each healthy cell after mitosis?

• 46

• 23

• 92

• we can't be sure

Humans have 46 chromosomes in their somatic (body) cells. How many chromosomes will be in each healthy cell after meiosis?

• 46

• 23

• 92

• we cannot be certain

What is not true about homologous chromosomes?

• they are found in different cells during prophase I

• they are the same length

• they may cross over during synapsis

• their centromeres are in the same positions

Which are correctly paired (choose all that apply).

• n = haploid

• n = uniploid

• n + 1 = monoploid

• 2n = diploid

Which is not true about the products of meiosis?

• haploid

• genetically different

• they are somatic cells

• there are 4 cells