Meiosis: Sexual Reproduction

Front 1

A nuclear division which reduces the chromosome number so that the gametes have half the species number of chromosomes.

Back 1

Meiosis

Front 2

What happen to the parent cell before meiosis?

Back 2

The parent cell is diploid; it contains pairs of chromosomes called homologues.

Front 3

Homologues

Back 3

A pair of homologues have the same shape and size. They form a tetrad because each homologue has two chromatids.

Front 4

Tetrad

Back 4

A pair of homologues.

Front 5

What happens after meiosis?

Back 5

The daughter cell are haploid; they contain only one from each pair of homologues.

Front 6

What are the phases of Meiosis I?

Back 6

Prophase I

Metaphase I

Anaphase I

Telophase I

Front 7

DNA coils into chromosomes, the nucleolus and nuclear envelope disappear, the mitotic spindle forms, and synapsis (crossing-over) occurs.

Back 7

Prophase I

Front 8

Tetrads line up randomly along the midline, spindle fibers attach to the centromere of each homologous chromosome.

Back 8

Metaphase I

Front 9

Homologous chromosomes move to the opposite poles of the cell

Back 9

Anaphase I

Front 10

The chromosomes reach the opposite end of cell and cytokinesis begins

Back 10

Telophase I

Front 11

What are the phases of Meiosis II?

Back 11

Prophase II

Metaphase II

Anaphase II

Telophase II

Front 12

Spindle fibers form and begin to move the chromosomes toward the midline of the dividing cell.

Back 12

Prophase II

Front 13

Chromosomes move to the midline of the dividing cell, facing opposite poles of the dividing cell.

Back 13

Metaphase II

Front 14

The chromatids seperate and move toward opposite poles of the cell.

Back 14

Anaphase II

Front 15

A nuclear membrane forms around the chromosomes in each of the 4 new cells.

Back 15

Telophase II

Front 16

The reproductive events that occur from one generation to the next. It involves both mitosis and meiosis.

Back 16

Life Cycle

Front 17

Name the organs that produce gametes

Back 17

Men - Penis

Women - Vagina

Front 18

Name the process that produces gametes

Back 18

Men - Spermatogenesis

Women - Oogenesis

Front 19

Types of cell division involved in the process

Back 19

Meiosis

Front 20

Name of the gamete

Back 20

Man - Sperm

Women - Egg

Front 21

Number of chromosomes in gamete

Back 21

Men -23

Women - 23

Front 22

Result of fermentation

Back 22

zygote

Front 23

Number of chromosomes provided

Back 23

46