Meiosis Study Guide

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Meiosis is a process of cell division that reduces the chromosomes number by

1/2

Meiosis produces how many cells

4

Meiosis produces what

gametes (sperm or egg)

Meiosis only takes place in what

reproductive organs

Human cells formed by meiosis will have how many chromosomes

23

Every cell produced by meiosis will be

unique

Meiosis goes through how many divisions

2

The first division of meiosis is

meiosis l

The second division of meiosis is

meiosis ll

Pairs of homologous chromosomes come together to form what

tetrad

Homologous pairs of chromosomes split in what phase

anaphase l

Sister chromatids split in what phase

anaphase ll

Male process

spermatogenesis

Males produce

4 haploid spermatids

Each spermatid will develop into

a mature sperm

Sperm do not contain

cytoplasm and organelles

Female process

oogenesis

Females produce

1 haploid egg cell and 3 polar bodies

The polar bodies will

die off

Having the polar bodies die will ensure that the egg gets all of

cytoplasm and organelles

Meiosis starts with what kind of cells + ends

diploid cells and ends with haploid cells

Meiosis starts with how chromosomes + ends

46 chromosomes and ends with 23 chromosomes