mitosis and meiosis and more
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mitosis purpose and meiosis purpose
grow and repair gamete
of daughter cells at the end of process for mitosis and meiosis
2 4
final # of chromosomes in mitosis and meiosis
46 23
mitosis and meiosis are diploid or haploid
diploid haploid
parent cell compared to the outcome of the cell for mitosis and meiosis
identical different
sames for mitosis and meiosis
cell division, sister chromatids line up and separate
what is homologous chromosomes
chromosome of same type, 1 from each parent
crossing over and its importance
swap DNA for diversity
2 ways to increase diversity
cross over and independent assortment
what is: chromatin chromatids chromosomes
-linear version of DNA in resting cell -1/2 of chromosome before replication -coiled/ condensed piece of DNA
Apoptosis and when its used in human development
programmed death, removes webbing in the fingers and toes of the fetus
haploid and diploid differences
H: no pairs and half amount of DNA D: pairs and full amount of DNA
somatic cells, gametes and zygote differences
S: bodycell, diploid, 46 G: sex cell, haploid, 23 Z: gamete come together to make diploid
giraffes have 62 chromosomes how many chromosomes would you find in a stomach cell of a giraffe and an egg cell
S: 62 E: 31
how fertilization restores the diploid number
sperm (23) + egg(23) = 46 chromosomes
differentiation and its importance in cells
cells using differentiation genes to get different jobs and lead to different types of cells to make tissues and organs