Sexual and Asexual Reproduction Asexual Reproduction One parent

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Sexual and Asexual Reproduction.

Sexual and Asexual Reproduction.

Asexual Reproduction: • One parent producing an offspring identical to itself (parent) • Offspring

Asexual Reproduction: • One parent producing an offspring identical to itself (parent) • Offspring can live independently

Cell Division in Unicellular Organisms Binary Fission: • form of asexual reproduction in prokaryotic

Cell Division in Unicellular Organisms Binary Fission: • form of asexual reproduction in prokaryotic (lacks nucleus) organisms • Parent organism splits in half (Eukaryotic – reproduce by mitosis ex: algae, some yeast, protozoans like paramecium)

Budding • Organism develops tiny buds on its body • Asexual reproduction • Buds

Budding • Organism develops tiny buds on its body • Asexual reproduction • Buds form from the parent cell so the bud is identical to the parent. • Both unicellular and multicellular • Examples: hydra, plants, some yeast

Regeneration: • Specialized cells grow new tissue when a wound or lost limb occurs

Regeneration: • Specialized cells grow new tissue when a wound or lost limb occurs • Examples: Starfish, lizard tails, planarian, cuttings from plants….

Asexual Reproduction & Health – Bacteria reproduces at very rapid rates – Reason you

Asexual Reproduction & Health – Bacteria reproduces at very rapid rates – Reason you get sick within a day. .

 • Spore Formation – spores = small specialized cells that contain a nucleus

• Spore Formation – spores = small specialized cells that contain a nucleus and cytoplasm surrounded by a thick outside wall which protects the spore. Under the right conditions the spore can rise to a new organism. Found in bacteria, molds, yeast, mushrooms, mosses, ferns and some protozoans.

Sexual Reproduction • Two parents egg (female) and sperm (male) • Fertilization – when

Sexual Reproduction • Two parents egg (female) and sperm (male) • Fertilization – when egg and sperm unite • Plants growing from seeds and animals growing from eggs • Creates the diversity of life on earth • Offspring is unique

Asexual Reproduction • • One parent Identical to parent More likely to get disease

Asexual Reproduction • • One parent Identical to parent More likely to get disease Binary Fission, budding, regeneration, spore formation

Sexual Reproduction • • • Two parents – male and female Unique offspring (

Sexual Reproduction • • • Two parents – male and female Unique offspring ( not identical to parents) Egg, sperm Fertilization ( egg and sperm unite) More resistant to disease