01:447:380 Lecture Notes - Lecture 4: Synteny, Oogenesis, Spermatogenesis
24 Jul 2016
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~sex-influenced same genotype in m and f, but different phenotype as per gender. ~a certain allele can be dom in one and rec in another gender. ~anya probably is a carrier if she has a boy he will probably have. ~proximity of genes on a chromosome affects their chances of being recombined during crossing over. Cis dominant on the same homolog of the pair, ab/ab. Trans dominant on different homologs of the pair, ab/ab. Homologs in the pair separated by / slash. ~sturtevant frequency of crossing over related to distance apart. ~no recombination during spermatogenesis, but can happen in oogenesis, so sturtevant only studied males. ~each % is one map unit, named centimorgan. ~you give one a mutagen, then cross it with a normal one, and see the progeny, look at a couple of generations to see recessive traits come out. ~don"t look at chi square test for linkage, not being tested on it.
