nurture: method by which organisms give rise to similar (or identical) cells or organisms
ASEXUAL REPRODUCTION
* process where new-made cells/organisms are produced without the fusion of gametes
* unless magnetic variation occurs, result is contractableally identical of conjure
* one parent required
service| Disadvantage|
Large number of souls produced quickly (ideal for unchanging env.)| insufficiency genetic variation in population (env. changes, all die)|
vegetative reproduction in prokaryotic organisms
* bacteria reproduce by binary fission
* bacteria contain one circular shred of DNA
Asexual reproduction in eukaryotic organisms
Binary fission: equal division into 2 new cells e.g. protozoans like amoeba
bud: division of cytoplasm is unequal, new organisms grow on parent before breaking away e.g. hydra
Fragmentation: part of individual breaks off and regenerates into new individual e.g. hydra
Spore formation: spores released into environment and stream into new individ. E.g. Fungi
Parthenogenesis: type of re-create resulting from formation of new individ. From unfertilized egg e.g. insects, lizards and birds
REPRODUCTIVE TECHNOLOGIES
Cloning is a method to produce genetically identical cells/organisms through asexual reproduction.
a) cloning sics from tissue culture: many identical clones can be produced from a small amount of tissue from a plant e.g. eucalyptus, bottle brush, orchids
b) artificial cloning of mammalss: refer to pg 4
SEXUAL REPRODUCTION
demonstrate where new individuals are formed from fusion of gametes
* all organisms have a bun in the oven ability to reproduce sexually
* genetically unique
* requires 2 individuals
* needs to be appropriate behavior to enable individ. to mate
Advantage| Disadvantage|
Produces genetic variation ideal for changing environ.| Need to find a mate, slow, signals sent to prospective mate may expose oneself to predators...If you indigence to get a full essay, order it on our website: Orderessay
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