MEIOSIS

Which of the following is the best definition for MEIOSIS?

• the process of two haploid cells uniting

• the counting of chromosomes within a diploid cell

• a two-step process that reduces the number of chromosomes in half such that there is only one copy of all the chromosomes

• the equational division of a cell into two identical copies

In which stage of MEIOSIS does crossing over occur? (The exchange of genetic material between chromosomes in a tetrad.)

• Anaphase I

• Metaphase I

• Prophase I

• Telophase I

How many cells are formed at the end of Meiosis II?

• 2

• 3

• 4

• 8

The products of MEIOSIS have _______ number of chromosomes.

• haploid

• diploid

Select the image that represents meiosis:

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Test Question

Crossing over happens when part of the genetic information of one chromosome switches places with the genetic information from another chromosome. Another term for this process is

• genetic recombination

• genetic reduction

• a mutation

• nondisjunction

These cells are considered body cells like skin, hair, and cheek.

• Somatic Cells

• Sex Cells

• Germ

• Gametes

The cells are sex cells like sperm and egg.

• Somatic Cells

• Germ Cells

• Intestinal Cells

• Brain Cells

The cells are sex cells like sperm and egg.

• Somatic Cells

• Germ Cells

• Intestinal Cells

• Brain Cells

What is the final result in meiosis?

• Two new daughter cells with the exact same chromosomes.

• Four new cells, each with half the chromosomes.

• Four new cells, each with twice the chromosomes.