4. How would you expect the numbers of offspring from a typical trihybrid backcross to look if you have two linked loci and one loci that is independently Assorting? nan be sunpressed.

Biology: The Dynamic Science (MindTap Course List)
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Chapter11: Meiosis: The Cellular Basis Of Sexual Reproduction
Section: Chapter Questions
Problem 12TYK: Discuss Concepts One of the human chromosome pairs carries a gene that influences eye color. In an...
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4. How would you expect the numbers of offspring from a typical trihybrid
backcross to look if you have two linked loci and one loci that is independently
assorting?
5. In certain instances crossing over between two linked genes can be suppressed.
For example, this can occur when one chromosomc has an inversion. How would
crossover suppression affect your results if you were trying to map two genes?
6. The gene order for four genes (p.g.r.s) is shown below with the map distances
between them. How many of 4500 offspring would you expect to have undergone
a crossover between q and r?
7. You've completed several two gene mapping experiments and found the
followingt results in cM.
a-b
21
a-c
11
a-d
24
b-c
10
b-d
3
d-c
13
Construct a map of all four genes indicating the gene order and distances between them.
8. Gametes from an ABC/abe triple heterozygous parent (note that the ABC is not
necessarily the gene order). What is the gene order:
When rarest gamete classes are ABc and abC?
b. When no aBC and Abc gametes are seen in a large sample?
WhatsApp Image.. jpeg
a
Transcribed Image Text:B/assignments 4. How would you expect the numbers of offspring from a typical trihybrid backcross to look if you have two linked loci and one loci that is independently assorting? 5. In certain instances crossing over between two linked genes can be suppressed. For example, this can occur when one chromosomc has an inversion. How would crossover suppression affect your results if you were trying to map two genes? 6. The gene order for four genes (p.g.r.s) is shown below with the map distances between them. How many of 4500 offspring would you expect to have undergone a crossover between q and r? 7. You've completed several two gene mapping experiments and found the followingt results in cM. a-b 21 a-c 11 a-d 24 b-c 10 b-d 3 d-c 13 Construct a map of all four genes indicating the gene order and distances between them. 8. Gametes from an ABC/abe triple heterozygous parent (note that the ABC is not necessarily the gene order). What is the gene order: When rarest gamete classes are ABc and abC? b. When no aBC and Abc gametes are seen in a large sample? WhatsApp Image.. jpeg a
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