BIOL130L Study Guide - Midterm Guide: Endonuclease, Guanine, Cloning
20 Jul 2016
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Document Summary
Artificial selection- purposeful mating, normally to make domesticated plants and. Belyaev wanted to see how genes influence traits, so he tested on silver foxes and made a breed that were happy with humans and a breed that wasn"t. Pups that came from aggressive mom still aggressive when given to nice mom. Mendel put pollen from male plant into female one then cross fertilized f1 generation. Tested a lot of different traits cross fertilized, and found a 3:1 ratio every time. For tall vs short, f1 tall plants reproduced dwarf plants again, disproving the previous theory that parental traits become mixed and forever changed in the offspring. Genotype genetic makeup; description of the genetic information carried by an individual. Alleles are alternative forms of a single gene. Homologous chromosomes have the same genes but different alleles (different dna sequence) Polymorphic- a gene that may have several alleles hat normally occur in a population.
