CM 7 Flashcards
(20 cards)
Perpetus means everlasting
To perpetuate means “ to make something to continue”
Perpetuation
The process by which organisms replicate themselves
Reproduction
2 types of reproduction
Asexual and Sexual
-Imvolvement of male and female gametes
-only happens in flowering plants (angiosperms)
Sexual reproduction
Vegetative: involves other parts of the plants
Genetically modified prganisms ( plants and animals)
- occurs when new plants are developed from parent plant’s roots, stem or leaves
Asexual reproduction
3 stages of sexual reproduction
Pollination
Zygote formation
Fruit and seed formation
The pollen grains are transferred across the anther to the stigma of the same flower or to flowers different plants either through self pollination or cross pollination
Pollination
The male gamete is transferred down through the style of the pistil to the ovary where the male gamete is fused with the female gamete to form a zygote
Zygote formation
The obary develops into fruit snd ovules into seeds
Fruit and seed formation
The process in which the male and female gamete together to form a new individual (offspring)
Sexual reproduction ( animals)
The process of producing an identical copy of a parent animal.
- can produce many offspring quickly
Asexual reproduction ( animal)
Asexual reproduction which a new individuak develops from almost any point of the body, usually restricted to specialized areas
Budding
Reproduction involving specialized single cells (spore) coming crom one parent
Sporulation ( spore formation)
Splitting of a single celled organism( bacteria, archaea, amoebas) into two
Binary fission
The process of generating a genetically identical copy of a cell or an organism
- can be natural or artificial
Cloning
Happens when some plants and single celled organisms such as bacteria produce genetically identical offspring through asexual reproduction in nature
Natural cloning
Produces copies of genes or segments of DNA
gene cloning a.k.a dna cloning
Produce copies of whole animals
Reproductive cloning
Produces embryotic stem cells for experiments aimed at creatingbtissues to replacemomjured or diseased tissuesn
Therapeutic cloning
Is considered the manufacture and destruction of a human lide, even though that life has not developed past the embryotic stage
Therapeutic cloningb