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Mary Clancy Mr. Sharp Science 8th 12/3/2020 …
Mary Clancy Mr. Sharp Science 8th 12/3/2020 Web #2
meiosis
diploid
haploid
gametes
2 types of sex cells
sex chromosomes
x-y chromosomes
the last pair of chromosomes
determine gender
Down's Syndrome
caused by having to many chromosomes
more likely to affect women
half of the normal body amount
fertilization
process of fertilizing an egg
fusion of male and female gametes to form a zygote
male sperm or female egg
zygote
resulting from the fusion of two haploid gametes
fertilized ovum
able to unite with another of the opposite sex in sexual reproduction
contain only 1/2 of the needed chromosomes
homologous chromosomes
unusually found like this
identical pairs
two complete sets of chromosomes
centromere
what chromosomes are counted by
where the spindles connect
meiosis 1
meiosis 2
no new duplication
mitosis like prosses
resembles mitosis
cell divition that produced haploid sex cells