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Transcript
100 Meiosis/Mitosis Mendel, etc Genetics 1 Genetics 2 Evolution Mitosis produces __ cells, genetically __, Meiosis… [2, identical, 4, different] What were 2 theories before Mendel? Describe. Which one did mendels work support? [blending, particulate] A heterozygous purple and homozygous white flower are test crossed: what percentage of offspring heterozygotes? Phenotype is affected by ___ & ___[phenotype & environment[ if good milking ability and bad coat are linked, and bad milking and good coat are linked, what would a recombinant offspring look like? how did overwhelming diversity arise? If a purple and white flower had incomplete dominance, what could F1 and F2 generations look like? What are gamete possibilities for BbEe in a dependent/independent? (BE are linked, & be are linked) Define Pleiotropy & Polygenic inheritance [pleiotropy – multiple genes, 1 allele, SCA, polygenic, multiple genes, 1 character] Define genomic imprinting and give a definition scientists determining how close alleles are use a ______ ____ [linkage map] 200 Meiosis I separates ___, Meiosis II separates ___ [homologus chromosomes, sister chromatids] 300 What does M checkpoint check for? [chromosomes aligned mid-cell] a heterozygous wildtype female and normal vision male have a daughter, what are her chances of being colorblind? 400 What is crossing over/when does it occur? [Meiosis I, Prophase I] Who were two guys who supported Mendel, what was their work on? [Morgan – sexlinked, Sutton – CHROMOSOMAL THEORY OF INH.] 500 Name all stages of cell cycle, (starting w/ interphase) what happens in each Name & describe both of mendels Laws [independent assortment, segregation] [matters if get allele from mom/dad – ex is mouse dwarfism] How is organelle repro different? [binary fission, own DNA] Crossing over occurs during _______ and the site of crossing over is the ____________ [meiosis I, prophase I & chiasma] How is genetic similarity maintained, how does genetic diversity happen? [sim= accurate DNA rep., diff = meiosis (seg, ind assort., crossing over), biparent inh., mutation] [Evolution by Natural selection] Who was other main theory guy than Darwin, what are parts to his theory? [Lamarck, use disuse & heritability of traits] What mechanism – and define it – allows a species to adapt to environment? [natural selection] What are both parts of Darwin’s theory, what do they say? [descent with modification (common ancestory), and Natural selection] name 3 ways that descent with modification is supported [anatomical homology, vestigial structures, molecular homology, embryological homology] Population genetics/Speciation What is a population? [localized group of organisms of same species] what does hardyweinberg theory state? What are 2 equations used? Define allopatric and sympatric speciation. List the limitations to H-W equilibrium [1. large population 2. no migration 3. no mutation 4. no N.S. 5. Random mating] what happens if one not met? EVOLUTION Describe the bottleneck effect and the founders effect.