MEIOSIS

Question 1

XY

Answer 1

Male

Question 2

XX

Answer 2

Female

Question 3

Prophase 1

Answer 3

Chromosomes condensed and become visible
Homologous pairs of chromosomes come together to form a bivalent
The point at which the homologous pairs attach is called a chiasma

Question 4

Metaphase 1

Answer 4

The homologous pair line up at equators

Question 5

Anaphase 1

Answer 5

Homologous pair are pulled to opposite poles by spindle fibres

Question 6

Telophase 1

Answer 6

Two nuclear envelopes form
Cytokinesis occurs (not in plants tho)

Question 7

Prophase 2

Answer 7

Two new nuclear envelopes breakdown
Chromosomes become visible and condenses

Question 8

Metaphase 2

Answer 8

Chromosomes line up at equator and attach to spindle fibres at centromere

Question 9

Anaphase 2

Answer 9

Centimetre divide chromatid pulled to opposite end

Question 10

Telophase 2

Answer 10

Nuclear envelope reform
Cytokinesis happens
For haploid genetically different cells formed

Question 11

Genetic variation in meiosis

Answer 11

Chromosomes Crossing over in prophase 1
Re Assortment of chromosomes in meiosis 1
Re assortment of chromatids in meiosis 2
Random fertilisation
Mutations in DNA