meiosis and sexual reproduction
DESCRIPTION
Meiosis and Sexual Reproduction. AP BIOLOGY BIG IDEA #3 GENETICS AND INFORMATION TRANSFER BIG IDEA #2 CELLULAR PROCESSES CHAPTER 13, 31 (FUNGI), 38 (PLANTS), 46 (ANIMALS). Basic Sexual Life Cycle. Process of Meiosis. Questions about meiosis:. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/1.jpg)
AP BIOLOGYBIG IDEA #3 GENETICS AND INFORMATION TRANSFERBIG IDEA #2 CELLULAR PROCESSES
CHAPTER 13, 31 (FUNGI), 38 (PLANTS), 46 (ANIMALS)
MEIOSIS AND SEXUAL REPRODUCTION
![Page 2: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/2.jpg)
Basic Sexual Life Cycle
![Page 3: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/3.jpg)
Process of Meiosis
![Page 4: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/4.jpg)
Questions about meiosis:•Which is more like mitosis, meiosis I or II? Explain?
•When do sister chromatids separate?
•When do homologous chromosomes line up?
• How many times does S phase (interphase) occur?
• How do the cells produced by meiosis compare to the original cells?
![Page 5: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/5.jpg)
MEIOSIS AND SEXUAL REPRODUCTION•ALLOW FOR INCREASED VARIATION IN OFFSPRING:•INDEPENDENT ASSORTMENT OF CHROMOSOMES•CROSSING OVER•RANDOM FERTILIZATION
![Page 6: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/6.jpg)
INDEPENDENT ASSORTMENT OF CHROMOSOMES
![Page 7: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/7.jpg)
CROSSING OVER
![Page 8: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/8.jpg)
RANDOM FERTILIZATION
![Page 9: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/9.jpg)
Animals and plants have evolved structures to aid in sexual reproduction:•Animals: Reproductive systems & associated hormonal control.
•Plants: Flowers•Investigation Question #1:•How do plants avoid self-reproduction?
![Page 10: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/10.jpg)
Mechanisms for avoiding self-reproduction:•Plants can be separate sexes (monecious).•Plants can have flowers that are separate sexes.•Plants can have flowers that have both male and female parts but avoid “selfing” by:•Structural incompatibility•Temporal incompatibility•Genetic incompatibility
•Your job in lab will be to collect evidence to determine how Allostromeria species avoids self-reproduction!
![Page 11: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/11.jpg)
What is the role of the fruit in plant reproduction?
![Page 12: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/12.jpg)
![Page 13: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/13.jpg)
Germination of Seeds Investigation #2•Experimental Question: Does temperature have an effect on germination?•Design an experiment to determine if warm or cool temperatures will impact the germination of seeds.
![Page 14: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/14.jpg)
Investigation #3: Observing the process of meiosis in fungal spores
![Page 15: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/15.jpg)
Patterns show crossing over:
![Page 16: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/16.jpg)
Use the Lab Bench as a guide to help you understand what data you are collecting about your sample fungi:• Experimental Question: What is the crossing over frequency of your Sordaria fungus?http://www.phschool.com/science/biology_place/labbench/lab3/design2.html
![Page 17: Meiosis and Sexual Reproduction](https://reader031.vdocuments.site/reader031/viewer/2022013119/568163a5550346895dd4ab07/html5/thumbnails/17.jpg)
You will maintain a lab notebook for the genetics unit:• This lab notebook will be assigned a 100 point grade:1) Flower reproduction lab2) Seed to Fruit diagrams/table3) Seed germination lab 4) Arizona Karyotype Lab5) Crossing over fungi lab 6) Embryo observations 7) Chi square and corn lab8) Genetics Boot Camp