Genetics Chapter 4 Part 1

Table of Contents: 00:00 - Extensions of Mendelian Genetics 01:15 - 4.1 Alleles Alter Phenotypes in Different Ways 01:17 - Section 4.1 Alleles Alter Phenotypes 03:12 - Section 4.1 Function Mutations 05:01 - 4.2 Geneticists Use a Variety of Symbols for Alleles 05:04 - Section 4.2 Geneticists Use Symbols for Alleles 05:53 - Section 4.2 Representing Alleles in Drosophila melanogaster 06:21 - Section 4.2 Allele Representations 07:01 - Section 4.2 No Dominance 07:34 - 4.3 Neither Allele is Dominant in Incomplete, or Partial, Dominance 07:42 - Section 4.3 Incomplete or Partial Dominance 08:30 - Section 4.3 Snapdragons (1 of 2) 09:51 - Section 4.3 Snapdragons 13:16 - Section 4.3 Intermediate Level of Gene Expression 15:04 - Section 4.3 Threshold Effect 15:35 - 4.4 In Codominance, the Influence of Both Alleles in a Heterozygote is Clearly Evident 15:55 - Section 4.4 Codominance 16:11 - Section 4.4 M N Blood Group 18:37 - Section 4.4 M N Blood Group