BIOL 100 Lecture Notes - Lecture 12: Turner Syndrome, Trisomy, Meiosis
Document Summary
During meiosis- if chromosomes do not separate in anaphase i or anaphase ii, nondisjunction happens. Babies without chromosomes often stop developing before birth. Babies with extra chromosomes may be alive at birth and will have less problems than babies without chromosomes. Mutations in chromosome structure can have major effects on an organism. Genetics how have traits been passed on from ancestor to offspring, inheritance of biological characteristics. Analyze the genes that predict the appearance of the offspring. Gene encode proteins: enzyme essential for life are products of genetics. Genetics allow us to find ways to breed superior crops and track genetic disorders. Gm- studied traits using peas founder of genetics. Law of segregation- each person has their own pair of genes for any trait and can pass it randomly to an offspring. Law of independent assortment- separate genes for each trait are passed independently from another trait by one parent to child. Distinguish between homozygous dominant, homozygous recessive, and heterozygous.
