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Life Science: Genes & Molecular Machines (Cell Division (Meiosis (A…
Life Science: Genes & Molecular Machines
Cell Division
Meiosis
A cell splits two times during meiosis
Four daughter cells are produced in meiosis
Meiosis takes place in sexual reproduction
Mitosis
Two identical daughter cells are produced in mitosis
Mitosis takes place in asexual reproduction
Mitosis is the process the body goes through to heal wounds.
Types of cells
Eukaryotic cells
A eukaryotic cell can be unicellular or multicellular
A eukaryotic cell has membrane-bound nucleus
Eukaryotic cells are much more omples than prokaryotic cells
Prokaryotic cells
They have no membrane-bound nucleus
Bacteria and fungus are an example of a prokaryotic cell
Prokaryotic cells are all unicellular
Heredity
Phenotype
The phenotype includes the organism set of characteristics.
A person phenotype depends on a person genotype
Phenotype is the physical apperance of all organisms
Genotype
The genetic makeup is the stuff we can't see by looking at an organism
Different genotypes can produce different phenotypes
Genotype is the genetic makeup of an organism
Flowering Plants & Seeds
Cross pollination
a reproductive process in which pollen from one plant is transferred to the stigma of another plant
Cross pollination allows for diversity among species which is very important for all species
Self Pollination
Self pollination is the pollination of a flower by pollen from the same flower or from another flower on the same plant.
Not all perfect flowers will self-pollinate themselves