1 / 9

2. Why aren’t the offspring that result from sexual reproduction exactly like either parent?

Mitosis. Meiosis. Number of cell divisions?. Exchange of genetic material between chromosomes?. Number of functioning cell produced from original?. How is the genetic material of final cells produced?. Number of chromosomes of daughter cells compare to parent cells.

sirius
Download Presentation

2. Why aren’t the offspring that result from sexual reproduction exactly like either parent?

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. Mitosis Meiosis Number of cell divisions? Exchange of genetic material between chromosomes? Number of functioning cell produced from original? How is the genetic material of final cells produced? Number of chromosomes of daughter cells compare to parent cells Function of cells produced? One Two No Yes (crossing over) Two daughter cells Four daughter cells Identical to parent cell Different from parent cell The same # of chromosomes # of chromosomes is Divided by one-half Body cells: body growth and repair Sex cells for reproduction 2. Why aren’t the offspring that result from sexual reproduction exactly like either parent? 3. Why is it necessary to reduce the number of chromosomes in gametes by one-half? • the exchange of genetic information (crossing over) during prophase I • The split of chromosomes. Daughter cells contain half of chromosomes than parent cell To maintain an even number of chromosomes in sexual reproduction

  2. Label as diploid or haploid

  3. Meiosis I Figure 11-15 Meiosis Section 11-4 Meiosis II Prophase II Metaphase II Anaphase II Telophase II Compare parent cells & daughter cells How are they different? What two processes cause these differences?

  4. Meiosis animation. Excellent. http://www.johnkyrk.com/meiosis.html Mitosis / meiosis animation http://www.pbs.org/wgbh/nova/baby/divi_flash.html Meiosis and mitosis interactive http://www.biologyinmotion.com/cell_division/index.html

  5. Crossing-Over Section 11-4

  6. 1. State 3 differences between mitosis and meiosis: a. b. c. 2. Which diagram best represents part of the process of sperm formation in an organism that has a normal chromosome number of eigh?

More Related