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What is c ros s ing ov er? Hin t 1.
Cros s ing ov er oc c urs during prophas e I.
ANSWER: se ssion.ma ste r ingbiology.c om/myc t/a ssignme ntPr intVie w? a ssignme ntI D= 2242938 24/28 13- 10- 13 Cha pte r 13
the mov ement of genetic material from one c hromos ome to a nonhomologous c hromos ome
als o referred to as the "independent as s ortment of c hromos omes "
the ex c hange of homologous portions of nons is ter c hromatids
mak ing an RNA c opy of a DNA s trand
a direc t c ons equenc e of the s eparation of s is ter c hromatids Correct
The res ult is new c ombinations of genetic material (genetic rec ombination). Activity: Origins of Genetic Variation Clic k here to c omplete this ac tiv ity .
Then ans wer the ques tions . Part A
Clic k on the diagram to v iew an animation. This animation illus trates the proc es s of _____. ANSWER:
c entromere s eparation
c ros s ing ov er
k ary ok ines is
c y tok ines is
random fertiliz ation Correct
Pairing of homologous c hromos omes is followed by c ros s ing ov er, the ex c hange of genetic material between nons is ter c hromatids of homologous
c hromos omes . Part B
Clic k on the diagram to v iew an animation. Whic h of thes e gametes c ontains one or more rec ombinant c hromos omes ?
ANSWER: se ssion.ma ste r ingbiology.c om/myc t/a ssignme ntPr intVie w? a ssignme ntI D= 2242938 25/28 13- 10- 13 Cha pte r 13
A and D
A and C
D and E
A and B
B and C Correct
Eac h of the c hromos omes in gametes B...
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This document was uploaded on 02/17/2014 for the course BIOCHEMIST 2550 at Ohio State.
- Spring '14