Meiosis Flashcards
Draw a diagram from prophase 1 -Telophase ll
Draw it out
What happens in Prophase l
Nuclear membrane dissolves
Crossing over occurs
Terrad is formed
What happens in metaphase one?
Tetrads line up at the middle of the cell and attached to the spindle fibres at their centromere‘s 
What happens in anaphase one?
The tetrads separate
The spindle fibres pull them back to their central rods
The cell membrane begins to re-constrict
What happens in telophase one?
Cellmate membrane completely reforms
To diploid cells are produced
The nuclear membrane enclosed is the separated, chromatids
What happens in prophase two
DNA begins to condense and forms short chromosomes
Each chromosome pair has a centromere
Homologous chromatids do not duplicate, but merely separate 
What is homologous?
In other words it means same location
Homologous chromosomes are chromosome pairs (one from each parent) that are similar in length, gene position, and centromere location.
What happens in metaphase two
Chromatids line up in the middle of the cell
Centrioles are at the poles of the cell
What happens in anaphase two
The chromatids separated, and go back to the polls
The cell membrane begins to reform
What happens in telophase two
For haploid cells are produced
Each cell has half of the number of chromosomes of the parent cell
The cell membrane begins to pitch

What is meiosis?
When chromosomes cut in half
What does meiosis occur in
Sexually reproducing organisms
In meiosis, how many chromosomes do they start with an N with?
They begin with a germ cell which contains 46 chromosomes and end with for gametes, which contain 23 chromosomes
What is the meaning of diploid?
When the cells in your body have a complete set of pairs (all 46)
What is the meaning of haploid?
Gametes only have half (23)
