EEMB 129 Lecture Notes - Lecture 3: Mendelian Inheritance, Letter Case, Gamete
15 Nov 2017
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Audio recording started: 1:01 pm friday, january 13, 2017. Single cell going through mitosis: get 4 gametes. An analysis of genetic crosses depends upon an understanding of mendel"s two laws: The principle of segregation (first law): the two members of a gene pair (alleles) segregate (separate) from each other in the formation of gametes. Half the gametes carry one allele, and the other half carry the other allele. The principle of independent assortment (second law): genes for different traits assort nd. The principle of independent assortment (second law): genes for different traits assort independently of one another in the formation of gametes. Testcross: a mating in which an individual showing a dominant phenotype is crossed with an individual showing its recessive phenotype. 2 events independent joint probability is the product of their independent probability. Roll a dice, want a 5 and a 5. Prob is 1/6 and 1/6, so the joint probability is 1/36.
