Meiosis

When does crossing over occur?

• prophase I

• prophase II

• interphase I

• Anaphase I

What does crossing over do to genetic variation?

• increases it

• decreases it

• genetic variation does not change

If the diploid number in a cell is 80, the haploid number would be

• 160

• 80

• 40

What is separated during anaphase of meiosis I?

• homologous chromosomes

• sister chromatids

What is separated during anaphase of meiosis II?

• homologous chromosomes

• sister chromatids

A cell that has only a single set of chromosomes is ___.

• haploid

• diploid

When sperm and egg combine a ____ is formed.

• diploid zygote

• haploid zygote

A reduction division that creates haploid gametes.

• mitosis

• crossing-over

• meiosis

• synapsis

The number of cell divisions that occur in meiosis.

• 1

• 2

• 3

• 4

The number of cells that are created during meiosis.

• 1

• 2

• 3

• 4