Inheritance, Variation and Evolution
- Created by: QueenBucky
- Created on: 15-11-21 20:31
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Mitosis
- Creates two identical daughter cells
- each cell contains the same number of chromosomes
- used for growth and repair
- produces diploid cells
Meiosis
- 4 different daughter cells
- each contains a different mix of chromosomes
- the same number of chromosomes
- different ones duplicated from the parent cells
- used for sexual reproduction
- produces gametes
- haploid cells
human meiosis
- women - gametes are in the eggs
- men - gametes are in the sperm
plant meiosis
- eggs - stigma
- pollen - stamen
2n 4n 2n 2n n n n n
(n) means the haploid number
(2n) means the diploid number
Asexual reproduction
- found in bacteria/fungi and strawberry plants
- mitosis
- genetically identical
- all daughter cells are the same
Sexual reproduction
- .
DNA
- made from different bases that fit together
- A - T
- G - C
- sugar-phosphate backbone
- double helix structure
Gene
- stretch of DNA
- codes for a characteristic
- GENES MEANS PROTEINS
Genome - All the genes in the body
- every three-letter sequence of…
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