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BIO GENETICS 210 FINAL EXAMS 2024 WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS BY EXPERTS |FREQUENTLY TESTED QUESTIONS AND SOLUTIONS |ALREADY GRADED A+ |NEWEST |GUARANTEED PASS |LATEST UPDATE $20.49
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BIO GENETICS 210 FINAL EXAMS 2024 WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS BY EXPERTS |FREQUENTLY TESTED QUESTIONS AND SOLUTIONS |ALREADY GRADED A+ |NEWEST |GUARANTEED PASS |LATEST UPDATE

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  • BIO GENETICS 210

BIO GENETICS 210 FINAL EXAMS 2024 WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS BY EXPERTS |FREQUENTLY TESTED QUESTIONS AND SOLUTIONS |ALREADY GRADED A+ |NEWEST |GUARANTEED PASS |LATEST UPDATE

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  • April 28, 2024
  • 66
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • BIO GENETICS 210
  • BIO GENETICS 210

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By: drjohna • 7 months ago

very accurate

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By: RegisteredNurse • 7 months ago

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By: Dredward • 7 months ago

very accurate and well detailed ...highly recommended

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1 | P a g e BIO GENETICS 210 FINAL EXAMS 2024 WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS BY EXPERTS |FREQUENTLY TESTED QUESTIONS AND S OLUTIONS |ALREADY GRADED A+ |NEWEST |GUARANTEED PASS |LATEST UPDATE Example - cross of two true -breeding pea characters, green and yellow F1: first filial (offspring) generation All peas are yellow Example that discredits blending inheritance F2: 2nd generation of crossed F1s 3 yellow : 1 green It is the same pattern with every character of these peas. First generation is all one solid color, 2nd generation is ¾ and ¼ ratios Law of Segregation two alleles separate during gamete formation and end up in different gametes (50% of gametes have one allele, 50% have the other) Loss-of-Function allele result in the gene product having less or no function (being partially or wholly inactivated) Phases of Mitosis Prophase → Prometaphase → Metaphase → Anaphase → Telophase Interphase NOT PART OF MITOSIS DNA replicates Centromeres (com posed of two centrioles) replicate DNA still loose and dispersed as chromatin 2 | P a g e Prophase Chromosomes condense Centrosomes migrate towards poles of cell (now nuclei will form here) Spindle fibers extend towards equator Prometaphase Chromosomes fully condensed Nuclear envelope dissolves Centrosomes at opposite poles Spindle fibers attach to chromosomes at kinetochores Metaphase Chromosomes moved to metaphase plate Anaphase Sister chromatids separate Pulled towards centrosomes by shortening spindle fibers Teloph ase Nuclear envelope forms Chromosomes diffuse (loosen) Spindle fibers dismantled Purpose of mitosis to create two daughter cells Proteins involved in mitosis cohesions, tubulin, separase Cohesions protein that holds sister chromatids together Tubulin asse mble microtubules Separase Chromatids held by cohesins until released by separase Microtubules Microtubules assembled from tubulin proteins Organized by centrosomes Lengthen and shorten to move chromosomes Microtubules attach to chromosomes at kinetochore 3 | P a g e Located at centromere Microtubules push/pull chromatids Cell Cycle G1, S, G2, M G1: Gap 1 Growth Commits to next division S S: DNA synthesis G2: Gap 2 More growth Express proteins, etc. needed for division M mitosis Cells that are not dividing are in _____ G0 MI Meiosis I Prophase I: homologous chromosomes pair (tetrad) Synapse along their lengths Anaphase I: homologs segregate One, 2n cell → two, n cells MII Meiosis II Segregates sister chromatids Two, n cells → four, n cells Synapsis when homologs synapse (synapsis: action of synapse) (synapse: in close contact along length of chromosome) Crossing -over homologs exchange portion s of sister chromatids Where the break occurs is effectively random for crossing over 4 | P a g e Under control of specific enzymes (done on purpose) Typically multiple events per chromosome Chiasma (pl. Chiasmata) when chromatids physically cross Holds tetrad togethe r until anaphase Crossing -over results in _____________ recombination Recombination: new arrangements of genes/DNA Fertilization fusion of haploid gametes to produce a diploid zygote (then embryo) Gametogenesis production of gametes Spermatogenesis product ion of sperm Four similar gametes produced (n) Pollen formation is similar Oögenesis production of ova (singl. ovum) Oogonia (singl. oogonium) 2n cells that produce ova Primary oocyte after DNA replication Secondary oocyte after MI Also a polar body, not a gamete Ovum and another polar body after MI _____% of the nuclei produced by meiosis aren't intended for fertilization, but the cytoplasm of those polar bodies is retained by the ovum 75% Advantage is genetic variation Leads to four cells, but only one ga mete Dictyate arrest

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