Ma ste r ingbiologyc ommyc ta ssignme ntpr intvie w a

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Unformatted text preview: logous c hromos omes from s eparating during meios is I. Which of the above statem ents are correct? ANSWER: 1 and 2 only 1 and 3 only 2 and 3 only 1, 2, and 3 1, 2, 3, and 4 se ssion.ma ste r ingbiology.c om/myc t/a ssignme ntPr intVie w? a ssignme ntI D= 2242938 13/28 13- 10- 13 Cha pte r 13 ANSWER: Correct Cros s ing ov er oc c urs during prophas e I when homologous c hromos omes loos ely pair up along their lengths . Cros s ing ov er oc c urs only between nons is ter c hromatids within a homologous pair of c hromos omes , not between the s is ter c hromatids of a replic ated c hromos ome. Only s egments near the ends of the c hromatids , not s egments neares t the c entromeres , c an ex c hange DNA. Part C ¬≠ Changes in ploidy and DNA content during meiosis The parent c ell that enters meios is is diploid, whereas the four daughter c ells that res ult are haploid. Which statem ent correctly describes how cellular DNA content and ploidy levels change during m eiosis I and m eiosis II? Hin t 1. Changes in cellular DNA content Meios is , lik e mitos is , is alway s prec eded by the replic ation of a c ell‚...
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This document was uploaded on 02/17/2014 for the course BIOCHEMIST 2550 at Ohio State.

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