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Life science genes & molecular machines (Types of cells (prokaryotic…
Life science genes & molecular machines
Types of cells
prokaryotic cells
does not have a nucleus
bacteria is an example of prokaryotic cells
single celled organisms
eukaryotic cells
Have a nucleus
has other internal organelles
plants, animals and humans are all eukaryotes
heredity
phenotype
physical appearance
visible traits
genotype
genetic makeup
allele combinations
Genotype is an inherited trait and hereditary information passed by the parents determines genotype.
cell division
meiosis
splits into 4 cells
similar to the parent
completes the process 2 times
second time it does not double the DNA
division of sex cells (gametes)
mitosis
splits into 2 daughter cells
identical to the parent
goes through the process one time
inter-phase, pro-phase, meta-phase, ana-phase, telo-phase and cytokinesis
division of body cells
flowering plants and seeds
types of pollination
self-pollination (asexual)
cross-pollination (sexual)
types of seed dispersal
my water
by wind