Life Science: Genes and Molecular Machines (Flowering Plants + Seeds (Seed…
Life Science: Genes and Molecular Machines
Flowering Plants + Seeds
The scattering or moving of seeds away from their parent plant.
Necessary for plants' survival, as the parent plant could smother its child unless they are seperated.
Can be done by wind, water, mechanical propulsion (shooting seeds), and animals.
Flowers can self-pollinate if they possess both male and female reproductive parts , but no mutations are created.
Cross-Pollination is how flowers reproduce sexually, and mutations occur during this process.
How flowers reproduce.
Types of Cells
All multicellular organisms are Eukaryotic.
Only plant cells have cell walls.
Has a membrane around its nucleus.
Prokaryotes all have a cell wall, like plants.
Does not have a nuclear membrane.
Bacteria and Archaea fit into this category. Only unicellular organisms can be prokaryotic.
A form of asexual reproduction. All created cells are exact copies of the parent cells.
Prophase, metaphase, anaphase, telophase.
This is how multicellular organisms grow, and how unicellular organisms reproduce.
The cell splits once, and then its daughter cells split, creating four cells with half of the original chromosomes.
Sexual reproduction. (produces sex cells)
Prophase, metaphase, anaphase, telophase, Prophase 2, metaphase 2, anaphase 2, telophase 2.
Alleles are either dominant or recessive. Dominant alleles always show their traits, and recessive traits only show if there are two matching recessive alleles.
Determined by combinations of alleles, the forms a chromosome takes.
Is affected by the trait given by the alleles.
Physical traits that are shown.
The result of genotype.