Introduction to Meiosis Flashcards
1
Q
What are gametes?
A
haploid s cells e.g. sperm = male (small and eggs = female (big)
2
Q
What is haploid (n)?
A
a cell with a single set of unpaired chromosomes (one of each homologous pair)
3
Q
What is diploid (2n)?
A
a cel with two complete sets of chromosomes (both homologous pairs - are from each parent)
4
Q
What is fertilisation?
A
fusion of 2 haploid gametes to form a zygote
5
Q
How is meiosis different from mitosis?
A
cell division to form gametes
- 2 dvisions (meiosis 1 and meiosis 2)
- 4 daughter cells that are genetically different
- crossing over can occur
- indepdent segregation
mitosis only has 1 division to form 2 daughter cells that are identical
