SMART. Asexual\Sexual Reproduction Lets talk about sex...

SMART

Asexual\Sexual Reproduction

Lets talk about sex . . .

Reproduction

The process by which organisms give rise to offspring

Asexual Reproduction

Sexual Reproduction

• parent reproduces by itself• offspring is genetically identical to “mamma”

It takes two baby ….

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•Offspring is genetically unique• creates diversity w/in population

1) Mitosis 2) Binary Fission3) Budding4) Spores5) Regeneration6) Vegetative Propagation

Asexual Reproduction

produce 2 identical daughter cells with the same # of chromosomes as the parent cell. (identical)

1) Mitosis 2) Binary Fission

• a parent cell splits into 2 daughter cells of = size

• w/ prokaryotes

3) Budding

4) Spores

• a new, duplicate organism forms at the side of the parent and enlarges until an individual is created.

• spores are surrounded by a tough coat to help them survive harsh conditions. .. Produced and released

5) Regeneratio

n

6) Vegetative Propagatio

n

• growth of new tissues/organs to replace those injured or lost.

• Common in invertebrates, especially Asteroidea (Sea Stars) and Annelida (Worms).

* In some multicellular plants * new plants develop from the

roots, stems, or leaves of the parent.

stolons

Sexual Reproduction

1) Meiosis

Which we’ll go into much detail later on …. But here’s the bare bone basics…..

Diploid – total # … 2n

Haploid– ½ the # …n

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fertilization

haploidhaploid

• Somatic cells .. Normal cells … nerve,etc

•Sex cells… GAMETES … sperm/egg

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fertilization

haploid haploid

46

23

46

46

23

Sexual Reproductio

n

Asexual Reproductio

n

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