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Asexual vs. Sexual Reproduction

Asexual vs. Sexual Reproduction

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Asexual vs. Sexual Reproduction. Asexual reproduction. 1 parent. The primary form of reproduction for single-celled organisms such as archaea, bacteria, and protists. Some plants and fungi reproduce asexually as well. . Sexual Reproduction. 2 parents - PowerPoint PPT Presentation

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Page 1: Asexual vs. Sexual Reproduction

Asexual vs. Sexual Reproduction

Page 2: Asexual vs. Sexual Reproduction

Asexual reproduction

1 parent. The primary form of reproduction for single-celled organisms such as archaea, bacteria, and protists.Some plants and fungi reproduce asexually as well.

Page 3: Asexual vs. Sexual Reproduction

Sexual Reproduction

2 parentsResults in increasing genetic diversity of the offspring. Characterized by two processes:

meiosis, halving of the number of chromosomesfertilization, combining two sex cells

Primary method of reproduction for the vast majority of visible organisms, including almost all animals and plants.

Page 4: Asexual vs. Sexual Reproduction

Binary Fission

AsexualCell splits and replicated DNA goes with each partProkaryotes, Bacteria+ Fast and easy- Everybody has the same DNA

Page 5: Asexual vs. Sexual Reproduction

Bacterial Conjugation

Does not produce offspring, changes parent.A bacteria shoots out a tube and sends a piece of its DNA to another bacteriaBacteria+ Mixes DNA- “Parent” loses a little piece of DNA

Page 6: Asexual vs. Sexual Reproduction

Fragmentation/ regeneration

AsexualBody of parent breaks and produces offspringFungi, moss, sea stars, planarian+ Easy- Parent broken, same DNA

Page 8: Asexual vs. Sexual Reproduction

Budding

AsexualOffspring grows out of parentYeast, hydras+ Fast, somewhat easy- Same DNA

Page 9: Asexual vs. Sexual Reproduction

Pollination

SexualPollen is delivered to female part of plantFlowering plants+ Plants don’t have to move, mixes DNA- Need external source for pollination to take place; wind, bee, bat, butterfly etc.

Page 10: Asexual vs. Sexual Reproduction

Pollination

Page 11: Asexual vs. Sexual Reproduction

Sexual Reproduction

SexualDNA from 2 individuals merge to form oneAnimals, Plants+ Diverse DNA- Takes a long time, 2 individuals needed