1 / 16

Angelo Smith

Angelo Smith. Reproduction of organisms. Menu – Forms of Reproduction. Sexual Reproduction What is Asexual Reproduction Budding Parthenogenesis Regeneration What is Sexual Reproduction? Sexual Reproduction Gametogenesis Steps in Fertilization Process of Meiosis Video

geoffrey-hogan
Download Presentation

Angelo Smith

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Angelo Smith Reproduction of organisms

  2. Menu – Forms of Reproduction • Sexual Reproduction • What is Asexual Reproduction • Budding • Parthenogenesis • Regeneration • What is Sexual Reproduction? • Sexual Reproduction • Gametogenesis • Steps in Fertilization • Process of Meiosis Video • Sexual Vs. Asexual • Sexual Vs. Asexual Comparison • Source Citations

  3. Forms of reproduction • Asexual • Budding • Regeneration • Parthenogenesis • Sexual • Mating

  4. What is asexual reproduction? • Is the reproduction of an organism without the fusion of gametes (sperm and egg) • Production of a new organism without a 2 party interaction for fertilization

  5. Asexual reproduction • Does not require mating • Little genetic diversity in the reproduction • You usually see this in sessile invertebrates that live in constant environments • You see this form of reproduction in bacteria and other single celled organisms

  6. Budding - The asexual process of budding can be explained a organism leaching /developing off another organism - Hydra use this form of Asexual reproduction to produce new organisms

  7. Parthenogenesis Is the development of offspring from unfertilized eggs Females can act as males in some species Produce a hormone that can fertilize their eggs in absence/abundance of male population You see rotifers use this method to sometimes produce

  8. regeneration • Star fish, lizards, planarians, sharks, spiders amongst many other organisms that regenerate for reproduction • Many organisms can regenerate – that is, regrow or grow new parts of their bodies to replace those that have been damaged. • http://www.factmonster.com/ipka/A0768606.html

  9. What is sexual reproduction • Sexual reproduction is the production of new living organisms by combining genetic information from two individuals of different sexes (male and female)

  10. Sexual reproduction • Sexual reproduction requires more use of energy than asexual reproduction • Promotes high level of genetic diversity • Crossing over and Ind. Assortment of genetic information of the male and female • Undergoes a 3 step process to fertilization

  11. Gametogenesis • - Required for the rise of the germ cells • - Process in which diploid of cell turns • haploid for both mother and father • before fertilization • This process occurs in the gonads • Ovaries in females • Gametes are larger and sessile • Testes in males • Gametes are small and motile

  12. Steps of fertilization (Sexual) • Gametogenesis • Involves a special type of cell division called meiosis • Process of genetic material from the parents being cut in half • Mating • The pairing of the opposite sex for copulation • Copulation is the union of the sex organs of two sexually reproducing animals for insemination and fertilization • Fertilization • The union of haploid egg and sperm in production of a zygote, or fertilized egg

  13. Meiosis http://www.neok12.com/Reproductive-System.htm

  14. Sexual vs. Asexual

  15. Compare and contrast Asexual Sexual • Requires the union of 2 individuals to produce offspring (male & female) • Wide range of genetic variation in offspring • Only mammals use this form of reproduction • Only requires 1 parent to produce offspring • Little genetic diversity seen in daughter organisms • Only bacteria and single celled organisms use this

  16. Sources and citations • http://www.factmonster.com/ipka/A0768606.html • - Google Images • http://en.wikipedia.org/wiki/Mating • - Information of Reproduction • http://teachertube.com/viewVideo.php?video_id=249284 • - Power Point Audio

More Related