Whats the honor code if i already did the example im providi

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter7: Development And Sex Determination
Section: Chapter Questions
Problem 18QP: Equalizing the Expression of X Chromosome Genes in Males and Females Males have only one X...
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Whats the honor code if i already did the example im providing ?? I just need help 

Epistasis problem-leftover from last time: Quarter horses (for the information of non-gamblers,
these are an actual breed of race horses; not all of the rest of this problem is very actual however) are produced in
a two-stage process. First, a whole horse is cut in half to produce half horses. This requires a functional A gene. If
there is no functional A gene, the horse remains whole. Second, the B gene cuts the half horses into quarter
horses. However, a dominant C gene (C-) will block the action of the B gene, leading to a half horses instead of
quarter horses. See diagram below. These 3 genes are UNLINKED.
B
Whole horses
+ Half horses
Quarter horses
C
An AaBbCc horse was crossed to an AaBbcc horse (both parents have slightly different genotypes!).
What fraction of the
pabies will be: (Hint: ask yourself what's required for each gene-dominant or recessive-
then multiply)
a)
whole horses?
b)
quarter horses?
c)
half horses (hint: figure out parts a and b first, and then using those #s, figure out this one.)
d)
Now show how to directly find the half horse amount.
Hints: Find all the nonoverlapping, mutually exclusive ways to be a half horse. What are they? Next, what do you
do with these numbers? If you get the same answer you got in part c, then you probably got it right.
Transcribed Image Text:Epistasis problem-leftover from last time: Quarter horses (for the information of non-gamblers, these are an actual breed of race horses; not all of the rest of this problem is very actual however) are produced in a two-stage process. First, a whole horse is cut in half to produce half horses. This requires a functional A gene. If there is no functional A gene, the horse remains whole. Second, the B gene cuts the half horses into quarter horses. However, a dominant C gene (C-) will block the action of the B gene, leading to a half horses instead of quarter horses. See diagram below. These 3 genes are UNLINKED. B Whole horses + Half horses Quarter horses C An AaBbCc horse was crossed to an AaBbcc horse (both parents have slightly different genotypes!). What fraction of the pabies will be: (Hint: ask yourself what's required for each gene-dominant or recessive- then multiply) a) whole horses? b) quarter horses? c) half horses (hint: figure out parts a and b first, and then using those #s, figure out this one.) d) Now show how to directly find the half horse amount. Hints: Find all the nonoverlapping, mutually exclusive ways to be a half horse. What are they? Next, what do you do with these numbers? If you get the same answer you got in part c, then you probably got it right.
11.
Here are two fungal crosses. a)
For each cross, fill out the 15 empty boxes with FDS (or
"I", SDS (or "2"), PD, TT, or NPD.
Parents
First cross: a Neurospora cross (ordered tetrads) of AB x ab. The table shows the 8 spores as pairs.
Spore Pair
1-2
Ascus Type
AB
АВ
AB
aB
3-4
AB
Ab
ab
aB
AB
ab
5-6
ab
aB
Ab
7-8
ab
ab
Ab
# of asci
108
60
30
2
FDS or SDS
2
for A?
FDS or SDS
for B?
PD, NPD, or
PD
PA
MPD
TT?
Pavents
Second cross: these two yeast strains (Unordered tetrads):(TRI arg4 X trp1 ARG4. You get these results
(where each column shows a tetrad type, and how many tetrac you got of that type).
TRP1 arg4
trp1 arg4
trp1 ARG4
trp1 ARG4
TRP1 arg4
TRP1 arg4
TRP1 ARG4
TRP1 ARG4
trp1 arg4
trpl arg4
trp1 ARG4
TRP1 ARG4
→total> 500
PD
54
391
55
PD, NPD,
or TT? →
IT
What is the formula for the distance between two genes using PDs, NPDS, and TTs? 5TT+2M)
Folel
а)
b)
What is the formula for the distance between a gene and its centromere?.
For the first cross: How far is each gene from its centromere? Show your work.
A-cen
B-cen 30469
= 7.5ch
22,Sch
200
Are the genes linked in the first cross? How do you know?
Yes, PD vasty outrembes NPO
d
e
Are thế genes linked in the second cross? How do you know?
No k PP+NPD ome obert eguel, S5is not sigifcontly mare Than
If the answer to question b and/or c is yes, figure out the distance(s) between the genes using the gene-
gene formula.
f
2 (60)+3(2)
200
18
Note hombes ditbe
complety but
it Veast
close,
2.
Transcribed Image Text:11. Here are two fungal crosses. a) For each cross, fill out the 15 empty boxes with FDS (or "I", SDS (or "2"), PD, TT, or NPD. Parents First cross: a Neurospora cross (ordered tetrads) of AB x ab. The table shows the 8 spores as pairs. Spore Pair 1-2 Ascus Type AB АВ AB aB 3-4 AB Ab ab aB AB ab 5-6 ab aB Ab 7-8 ab ab Ab # of asci 108 60 30 2 FDS or SDS 2 for A? FDS or SDS for B? PD, NPD, or PD PA MPD TT? Pavents Second cross: these two yeast strains (Unordered tetrads):(TRI arg4 X trp1 ARG4. You get these results (where each column shows a tetrad type, and how many tetrac you got of that type). TRP1 arg4 trp1 arg4 trp1 ARG4 trp1 ARG4 TRP1 arg4 TRP1 arg4 TRP1 ARG4 TRP1 ARG4 trp1 arg4 trpl arg4 trp1 ARG4 TRP1 ARG4 →total> 500 PD 54 391 55 PD, NPD, or TT? → IT What is the formula for the distance between two genes using PDs, NPDS, and TTs? 5TT+2M) Folel а) b) What is the formula for the distance between a gene and its centromere?. For the first cross: How far is each gene from its centromere? Show your work. A-cen B-cen 30469 = 7.5ch 22,Sch 200 Are the genes linked in the first cross? How do you know? Yes, PD vasty outrembes NPO d e Are thế genes linked in the second cross? How do you know? No k PP+NPD ome obert eguel, S5is not sigifcontly mare Than If the answer to question b and/or c is yes, figure out the distance(s) between the genes using the gene- gene formula. f 2 (60)+3(2) 200 18 Note hombes ditbe complety but it Veast close, 2.
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