Chapter 8 Chromosome Variation

Table of Contents: 00:00 - Genetics 00:17 - Chromosome Variation 01:27 - The Complex Genome of Wheat 03:25 - 8.1 Chromosome Mutations Include Rearrangements, Aneuploids, and Polyploids 05:29 - 8.1 Chromosome Mutations Include Rearrangements, Aneuploids, and Polyploids 08:04 - 8.1 Chromosome Mutations Include Rearrangements, Aneuploids, and Polyploids 08:24 - 8.1 Chromosome Mutations Include Rearrangements, Aneuploids, and Polyploids 08:39 - 8.1 Chromosome Mutations Include Rearrangements, Aneuploids, and Polyploids 10:09 - 8.1 Chromosome Mutations Include Rearrangements, Aneuploids, and Polyploids 10:52 - 8.2 Chromosome Rearrangements Alter Chromosome Structure 12:32 - Effects Of Chromosome Duplications 13:30 - Effects Of Chromosome Duplications 15:41 - Effects Of Chromosome Duplications 17:25 - Unbalanced Gene Dosage 19:48 - 8.2 Chromosome Rearrangements Alter Chromosome Structure 22:00 - 8.2 Chromosome Rearrangements Alter Chromosome Structure 22:45 - 8.2 Chromosome Rearrangements Alter Chromosome Structure 24:33 - 8.2 Chromosome Rearrangements Alter Chromosome Structure 24:48 - 8.2 Chromosome Rearrangements Alter Chromosome Structure 25:27 - Inversion Loop During Pairing in Prophase I of Meiosis 25:40 - In a heterozygous individual, a single crossover within a paracentric inversion leads to abnormal gametes. 27:49 - In a heterozygous individual, a single crossover within a pericentric inversion leads to abnormal gametes. 28:00 - Translocations 29:54 - Translocations in Meiosis: Robertsonian Translocation 30:46 - Reciprocal Translocations in Meiosis 32:58 - Fragile sites are chromosomal regions susceptible to breakage. 33:29 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes 33:30 - Fragile sites are chromosomal regions susceptible to breakage. 33:57 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes 35:39 - Aneuploids can be produced through nondisjunction in meiosis I, meiosis II, and mitosis. 36:51 - Types of Aneuploidy 37:34 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes 38:02 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes 38:18 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes 38:42 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes 38:43 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes 40:21 - Aneuploidy: Trisomy 21 Down Syndrome 41:10 - Aneuploidy: translocation of chromosome 21 onto another chromosome results in familial Down syndrome. 41:29 - Aneuploidy: Carriers of Translocation Chromosome 21 42:46 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes 43:57 - 8.3 Aneuploidy Is an Increase or Decrease in the Number of Individual Chromosomes