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Summer Term (Reproduction (Sexual (when gametes are produced (each cell…
Summer Term
Reproduction
Genetics
eukaryots
largest organelle: nucleus
exceptions
xylem
red blood cells
contains long DNA molecules
humans have 46
2 sets of 23
from the haploids (parents' gametes)
diploid
packed into chromosomes
contains genes
specific instruction the cell uses to create protein
human cell: between 20 000 and 22 000 genes
Asexual
when cell divides into 2 daughter cells:
chormosomes replicated
2 chromosome sets are shared between daughter cells
Sexual
when gametes are produced
each cell has 23 chromosomes
2 fuse to create zygote
haploid
plants
flowers
Pollination Differences