BIO 311D Lecture Notes - Lecture 27: Stolon, Meiosis, Zygosity
Document Summary
Bio 311d, dr. donald levin, lecture #27, 3 april 2017 (all images are taken from dr. levin"s lecture slides, which are available on his website http://www. sbs. utexas. edu/levin/bio311d/) Selfing (aka self-fertilization) all loci lose heterozygosity at a rate of 50% each generation: and homozygosity goes up, all loci are affected the same way. Self-incompatibility prevents selfing by using the s gene: i. e. s1, s2, s3, etc. For plants, the sperm goes through stigma and style to reach the ovary. Carpal = female tissue: if a pollen grain shares an allele with the pistil, the pollen grain won"t grow/germinate. Stolon (runner) shoot growing laterally on the surface of the ground until it hits the ground again and creates a new plant by taking root: asexual reproduction, both plants have same genotype. Dandelions in the united states reproduce only by asexual reproduction even though they have seeds .
