Unit 9: Genetics and Inheritance BTA

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

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

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

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

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

• 10

• 8

• 5

• 2

In mitosis the ​ (a)   daughter cells that are created are ​ (b)   . In meiosis the ​ (c)   daughter cells that are created are ​ (d)  

• two
• diploid
• four
• haploid

Which event is an important factor in increasing variety among sexually reproducing organisms?

• crossing over

• gene linkage

• testcross

• mitosis

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