Lesson 6-Reproduction In Plants Flashcards
Pollination
Is the act of transferring pollen grains from the male anther to the female stigma.
Fertilization
Is the process of fertilizing an egg
Pistil (what are the parts, there are 4)
~stigma (sticky top)
~style
~ovary (contains the ovules)
~ovules (unfertilized eggs)
Stamen (what are the parts, there are 2)
~anther (contains pollen)
~filament
Asexual (examples)
~budding>hydra or yeast
~runners>strawberries
~cutting>ivy
~bulbs>tulips
Asexual (advantages)
~convenient because only needs one parent to reproduce ~quality of the organism stays the same (good)
Asexual (disadvantages)
~makes it harder to adapt
~quality of the organism stays the same (poor)
Asexual
~means without sex
~cells copy and divide
~mitosis creates identical cells
Sexual (examples)
~human (sperm+egg=baby)
~plants (pollen+ovule=fertilized seed)
Sexual (advantages)
~number of chromosomes stay the same because during meiosis the chromosomes are halved. When sperm and the egg combine (23+23) it equals the original number of chromosomes (46).
~genetic variety (offspring receive DNA from 2 different parents)
Sexual (disadvantages)
~more complex
~harder to make it happen
~cells are not identical
Sexual
~means with sex
~union of a male sperm and a female egg
~meiosis is the process that produces sex cells.
^^
there is a 2nd division instead of another copy