Meiosis

Question 1

What is meiosis

Answer 1

a special type of reproduction only used for the production of sex cells = gametes. it is similar to mitosis except there are two division with 4 haploid cells being produced

Question 2

what is a gamete

Answer 2

sex cell

Question 3

what is a haploid

Answer 3

cells that have hald teh number of chromomsomes as diploid cells and therefore only contain a single pare of chromosomes (n)

Question 4

what is a diploid

Answer 4

contains 2 complete sets of chromosomes (2n)

Question 5

what are the 5 differences between mitosis and meosis

Answer 5

goal of process
MITOSIS - growth, repair and reproduction
MEIOSIS - reproduction of sex cells
which cells 
MITOSIS - somatic cells
MEIOSIS - gametes
nO of daughter cells 
MITOSIS - 2
MEISOSIS - 4
nO of chromosomes in daughter cell
MITOSIS - diploid 2 sets
MEIOSUS- haploid half the number

Question 6

What are the 11 steps of meiosis

Answer 6

interphase 1, prophase1 ,metaphase 1, anaphase 1, telphase, cytokeneisis 1, prophase 11, metphase 11, anaphase 11, telophase 11, cytokensis 11

Question 7

Explain the first 6 steps of Meiosis

Answer 7

1. inter - chromosomes start to replicate
2. pro - chromosomes have replicated into pairs of chromatids
3. Meta - chro from each [aremy [aor up randomly along equator and cross over
4. ana - whole chromosomes are pulled to the opposite ends of cell
5. telo - nuclear membrane appears around each set of chro
6. cyto - cell divides to produce two cells

Question 8

Exlpain the second 6 steps

Answer 8

7. pro II - in each of the two cells nucleare membranse starts to breakdown
8. meta II - in each of the two cells chro lines up along cell equator
9. ana II - in each of the two cells chromosomes are pulled apart and individual chromatids to opposite end of cell
10. telo II - in each of the two cells nuclear membranse appears around each set of chro
11. Cyto II - the two cells have dividied to produce 4 daughter cells

Question 9

how does crossing over create variation

Answer 9

creates new combos of genes in the gametes that are not found in either parent contributing genetic diveristy