Paper 2 Genetic Diversity meiosis

Question 1

What is meiosis

Answer 1

Produces daughter cells that are genetically different

2 nuclear divisions and creates 4 daughter haploid daughter cells

Question 2

Name a mechanism of meiosis (1)

Answer 2

independent segregation
Homologous pairs line up opposite eachother at the equator of the cell paternal and maternal chromosome lie randomly Pairs are separated 1 of each homologous pair ends up in daughter cell

Question 3

Name a mechanism of meiosis (2)

Answer 3

Crossing over
Pairs lie up opposite at equator parts of chromatids can become twisted around eachother this puts tension on parts of the chromatids causing it to break the broken parts recombine with different chromatid producing a new combo of alleles