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Video Clips

RealVideo®
7:35 minutes (41:50 - 49:25)
The discovery of chromosomes and brief overview of meiosis in the context of Mendel's work. Chromosome theory of inheritance-traits are carried on chromosomes that segregate when gametes form.
Prof. Eric Lander, Prof. Robert Weinberg, Dr. Claudette Gardel
Mendel's experiments
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RealVideo®
4:21 minutes (2:05 - 6:26)
Brief overview of mitosis and meiosis and the segregation of chromosomes in the context of Mendel's theory.
Prof. Eric Lander, Prof. Robert Weinberg, Dr. Claudette Gardel
Follows from previous lecture
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RealVideo®
4:13 minutes (10:40 - 14:53)
Two traits that are on the same chromosome may not segregate independently. Genetic linkage reconciles Mendel's theory and the Chromosomal Theory of Inheritance.
Prof. Eric Lander, Prof. Robert Weinberg, Dr. Claudette Gardel
None
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RealVideo®
9:45 minutes (16:48 - 26:33)
Explanation of steps and characteristics of meiosis. Definition: Meiosis I and II, chiasma
Prof. Penny Chisholm, Prof. Graham Walker, Dr. Julia Khodor, Dr. Michelle Mischke
Chromosomes and mitosis
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RealVideo®
3:22 minutes (26:33 - 29:55)
Fertilization and the combination of chromosomes from the egg and sperm. Chromosomes as the carriers of genetic particles.
Prof. Penny Chisholm, Prof. Graham Walker, Dr. Julia Khodor, Dr. Michelle Mischke
Chromosomes and meiosis
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RealVideo®
2:34 minutes (44:53 - 47:27)
Inaccurate segregation of chromosomes. Trisomy and monosomy as result of defects in meiosis.
Prof. Penny Chisholm, Prof. Graham Walker, Dr. Julia Khodor, Dr. Michelle Mischke
Meiosis
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Audio Clips

RealVideo®
10:55 minutes (5:14 - 16:09)
Detailed description of steps of meiosis I and meiosis II and comparison to mitosis. Should use in conjunction with textbook diagrams.
Prof. Tyler Jacks, Prof. Hazel Sive
None
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RealVideo®
5:29 minutes (16:09 - 21:38)
Explanation of homologous recombination that occurs during the prophase of meiosis I. Generation of new chromatids and chromosomes during recombination give rise to diversity.
Prof. Tyler Jacks, Prof. Hazel Sive
Meiosis
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RealVideo®
3:21 minutes (21:38 - 24:59)
How errors in meiosis occur, and how these errors are manifested in the final organism.
Prof. Tyler Jacks, Prof. Hazel Sive
Meiosis
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RealVideo®
7:31 minutes (16:04 - 23:35)
Lineages for the sperm and egg. Cell divisions and differentiations during the formation process.
Prof. Tyler Jacks, Prof. Hazel Sive
None
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RealVideo®
6:33 minutes (29:05 - 35:38)
Hormones as long-range inducers for gametogenesis. Produced in the brain, travel through the blood stream to the ovaries and testes. Balance of various stimulatory and inhibitory hormones and feedback loop induce gametogenesis.
Prof. Tyler Jacks, Prof. Hazel Sive
None
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Practice Problems

PDF
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Problem 3 (page 4)
Comparison between chromosomal segregation during mitosis, meiosis I and meiosis II and DNA recombination.
Prof. Eric Lander, Prof. Robert Weinberg, Dr. Claudette Gardel
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PDF
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Problem 2 (page 2)
Transcription and translation of a given gene and DNA mutations that affect the protein product.
Prof. Eric Lander, Prof. Robert Weinberg, Dr. Claudette Gardel
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PDF
Problem 4 (page 5)
Inheritance of traits based on segregation of chromosomes.
Prof. Penny Chisholm, Prof. Graham Walker, Dr. Julia Khodor, Dr. Michelle Mischke
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PDF
All problems (all pages)
Table comparing cell division through mitosis and meiosis-process and cellular components involved.
Prof. Tyler Jacks, Prof. Hazel Sive
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