Meiosis (process/cycle)

Question 1

What is the purpose of MEIOSIS?

Answer 1

To create a GAMETE for SEXUAL reproduction

Question 2

What cells undergo MEIOSIS?

Answer 2

GERM cells (found in testes/ovaries)

Question 3

What event occurs in PROPHASE 1?

Answer 3

Synapsis (forming of a tetrad)

Question 4

What is the purpose of SYNAPSIS?

Answer 4

To form a tetrad for the purpose of crossing-over of genes

Question 5

How to genes swap during crossing-over?

Answer 5

Independant assortment (2^haploid = # of outcomes)

Question 6

What is the difference between METAPHASE 1 vs METAPHASE 2?

Answer 6

1: Tetrads align on central axis side by side
2: Chromatids align on central axis single-file

Question 7

How many chromosomes are in each cell at the end of MEIOSIS 1?

Answer 7

23 sister chromatids (no homologous pairs)

Question 8

How many cells are formed at the end of MEIOSIS 1?

Answer 8

Two daughter cells

Question 9

How many chromosomes are in each cell at the end of MEIOSIS 2?

Answer 9

23 SINGULAR chromosomes

Question 10

How many cells are formed at the end of MEIOSIS 2?

Answer 10

Four daughter cells

Question 11

Need more review?

Answer 11

pg. 160 # 3, 6, 8, 9, 10