Meiosis Flashcards
1
Q
What is meiosis?
A
A type of cell division that occurs in the formation of gametes
2
Q
What are gametes?
A
sex cells
sperm + egg
3
Q
what is Testerone?
A
Hormone produced by the testes
4
Q
what are Haploid cells?
A
- half number of chromosomes
- only in unfertilized gametes
- in humans the number is 23
5
Q
What are diploid cells?
A
- cells with full numbers of chromosomes
- in all cells apart from gametes
- in humans the number is 46
6
Q
what is mitochondrial DNA?
A
- comes from mother not father
- but unlike nuclear DNA it follows a direct line of descent from mother to offspring.
7
Q
What is a mutation?
A
change in chemical structure of a gene or chromosome, which alters the way an organism develops
