Review Unit 4 Meiosis

Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?

• In order for genetic information to be transferred into daughter cells.
• In order for the cell to be able to increase in size.
• In order for the DNA to be contained in the nucleus.
• In order for the cell to re-order the DNA sequencing in the new cells.

The end of mitosis results in  ____ to each other.

• 2 cells that are identical

• 4 cells that are identical

• 2 cells that are not identical

• 4 cells that are not identical

The end of meiosis results in  ____ to each other.

• 2 cells that are identical
• 4 cells that are identical
• 2 cells that are not identical
• 4 cells that are not identical

What are chromosomes?

• different versions of genes
• condensed DNA 
• uncoiled DNA

The process of crossing over occurs in what phase of meiosis?

• anaphase 1
• prophase 1
• prophase 2
• telophase 1

This image shows chromosomes during Prophase 1. Which of the following correctly describes the process shown?

• segregation of sister chromatids

• condensation and segregation of alleles

• mutationin which the DNA content of the gene is altered

• crossing - over in which genes are exchanged

A chromosome is composed of two identical sister

• centromeres

• chromatids

• autosomes

• somatic cells

A pair of homologous chromosomes (a tetrad) is composed of ​ ​ (a)   matching chromosomes, and ​ (b)   sister chromatids.

• two
• four
• one
• three

In which type of cell division does crossing over occur?

• mitosis

• meiosis

During meiosis, if an organism has 10 chromosomes, how many will the new daughter cells have?

• 10

• 8

• 5

• 2