7REG. Science 3.3 Both sexual and asexual reproduction involve cell division

asexual reproduction

one organism produces one or more new organisms that are identical to itself and that live independently of it. Usually unicellular organisms reproduce this way.

offspring

the new organism

Parent

the organism that produces the new organism

Regeneration as asexual reproduction

Ex starfish is cut in half. Each half will regenerate this missing body part to form 2 complete independent and identical starfish. Also growth of plants by cutting piece off is example.

Generation time

Time it takes for one generation to produce offspring. Example bacteria generation time is very fast so you can feel fine in morning but are sick by afternoon.

Is cell division and reproduction by binary fission the same process in prokaryotic organisms

Yes because they are single celled

Regeneration

A process of new tissue growth in multicellular organisms.

Asexual vs sexual reproduction

Asexual: Cell Division, one parent, rate of reproduction is rapid, offspring genetically identical to parent. Sexual: Cell Division and other processes, two parents, rate of reproduction is slower, offspring have genetic material from both parents.

Sexual reproduction

Involves 2 parents and occurs in multicellular organisms.

Is mitosis and cytokinesis in multicellular organisms considered a method of reproduction

No. because the new cells cannot live independent lives. ex. new skin cells are part of skin tissue and cannot live independently.

budding

Occurs in both unicellular and multicellular organisms. the organisms develop tiny buds on its body that is genetically identical to the parent. Eventually most buds break off and live independently of the parent.

Single celled eukaryotic organisms asexual reproduction

done through mitosis and cytokinesis. Ex is algae and paramecium

binary fission

form of asexual reproduction occurring in prokaryotes. occurs when the parent organism splits in two, producing two completely independent daughter cells genetically identical to the parent cell.