Homework Answers
Answer 3:)
Offspring will be the following:
Gametes of the female parent are from left to right in the top of the table, while gametes of the male parent are from top to the bottom.
|
Gametes |
XW+w+-a++ |
XW+w+Cy++ |
XW+CyO-a++ |
XW+CyOCy++ |
|
XW+w+-a++ |
XW+w+-a++/ XW+w+-a++ |
XW+w+Cy++/ XW+w+-a++ |
XW+CyO-a++/ XW+w+-a++ |
XW+CyOCy++/ XW+w+-a++ |
|
XW+w+Cy++ |
XW+w+-a++/ XW+w+Cy++ |
XW+w+Cy++/ XW+w+Cy++ |
XW+CyO-a++/ XW+w+Cy++ |
XW+CyOCy++/ XW+w+Cy++ |
|
XW+CyO-a++ |
XW+w+-a++/ XW+CyO-a++ |
XW+w+Cy++/ XW+CyO-a++ |
Dead |
Dead |
|
XW+CyOCy++ |
XW+w+-a++/ XW+CyOCy++ |
XW+w+Cy++/ XW+CyOCy++ |
Dead |
Dead |
|
YW+w+-a++ |
XW+w+-a++/ YW+w+-a++ |
XW+w+Cy++/ YW+w+-a++ |
XW+CyO-a++/ YW+w+-a++ |
XW+CyOCy++/ YW+w+-a++ |
|
YW+w+Cy++ |
XW+w+-a++/ YW+w+Cy++ |
XW+w+Cy++/ YW+w+Cy++ |
XW+CyO-a++/ YW+w+Cy++ |
XW+CyOCy++/ YW+w+Cy++ |
|
YW+CyO-a++ |
XW+w+-a++/ YW+CyO-a++ |
XW+w+Cy++/ YW+CyO-a++ |
Dead |
Dead |
|
YW+CyOCy++ |
XW+w+-a++/ YW+CyOCy++ |
XW+w+Cy++/ YW+CyOCy++ |
Dead |
Dead |
CyO or Curly O is a balancer chromosome and is lethal when it is recessive homozygous. Therefore, some individuals are dead.
There is a total of 32 progenies in which 8 are dead. Each individual has a unique genotype. Therefore, the genotype frequency of all genotypes is in 1:1 manner.
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the two X-linked markers:
w+ and m+.
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two parents:
- a phenotypically wild-type (red eye, full wing), heterozygous
female: w+m+/wm
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wm/Y
Answer the following questions:
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in the female? Why or why not?
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That's how I was given the question please answer it
A dihybrid cross is carried out on two plants with violet flowers. The progeny are as follows: 191 violet flower plants 54 pink flower plants 81 white flower plants The extention/modification that best accounts for these data is [A]. Be specific! The heterozygote genotype is AaBb (loci are on different chromosomes), and the A locus is associated with the violet and pink phenotypes. Given this information, state the possible genotypes...
Concerning the four corn genes below
a) For the following corn genotypes, indicate the expected
kernel colors.
1) Cc Rr pp yy
2) CC rr PP yy
3) Cc Rr Pp YY
4) CIc Rr Pp yy
5) CIC Rr pp Yy
b) From the following corn crosses, list all of the expected
genotypes, corresponding phenotypes, and the ratios (phenotypic and
genotypic) that you would expect among the progeny. List only the
genes that are segregating, not the genes that...
Please answer all :)
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7 and 8
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3. Expected Progeny from a Cross What progeny and ratios do you expect if you crossed the strain above matA; cen-H3-rfp-hph; his-3 X mata; son-1-gfp -bar? How could you select for strains expressing both cen-H3-rfp and son-1-gfp?
3. Expected Progeny from a Cross What progeny and ratios do you expect if you crossed the strain above matA; cen-H3-rfp-hph; his-3 X mata; son-1-gfp -bar? How could you select for strains expressing both cen-H3-rfp and son-1-gfp?
The results for the F2 progeny are shown for a F1 cross using
the two X-linked markers:
w+ and m+.
As shown in the figure, the F1 cross is between the following
two parents:
- a phenotypically wild-type (red eye, full wing), heterozygous
female: w+m+/wm
- a double mutant male (white eye, miniature wing):
wm/Y
Answer the following questions:
1) In the F1 cross, can you infer the genotype for the phenotype
in the female? Why or why not?
2)...
please answer the question and explain the concept
If you scored 28 females and 22 males Drosophila flys, populate the table below in the appropriate phenotype area. Phenotype of No. of Males No. of Total F1 Progeny Females light brown, unforked, crossveins yellow, forked crossveinless other (if any) Total If the genetic cross was set up correctly, show the phenotype and genotype of the flies that you would expect to see. Students sometimes see F1 Offspring with unexpected phenotypes. What...
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