果兩個係identical
每個有23對chromosome
係唔係?
係
Meiosis就係一個分4個
但每個得23條chromosome
係唔係?
係
daughter cells are formed when parent cell divides.
daughter cells can be parent cell
但係都可以唔係parent cell
例如red blood cells
sperm同egg要有23條chromosomes
佢地唔會有cell division嫁
但係egg fertilized之後
就會有mitiosis囉
zygote先會form
23條chromosomes (from sperm) + 23條chromosomes (from egg)
咁咪等如46條即係23對chromosomes
所以sex cells一定係haploid嫁
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