feel like I did these wrong
numbers too high on first problem?
how do you know which gene is in the middle?
thank you.
Homework Answers
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feel like I did these wrong
numbers too high on first problem?
how do you know...
Question 5 (14 marks) The allele cn gives fruit flies cinnabar eyes, whereas the allele cn...
Question 5 (14 marks) The allele cn gives fruit flies cinnabar eyes, whereas the allele cn gives red, the wild-type phenotype. The allele wx of a separate allele gives waxy wings, and wx gives non-waxy wings (wild-type). The allele b of a third gene gives fruit flies a black body, whereas the allele b gives a brown (wild-type) body colour. A geneticist knows these three genes are on the same chromosome, but does not know what order the genes are...
Plz i feel like i am getting this wrong! by the way my answer is dihybrid.......
Plz i feel like i am getting this wrong! by the way my answer is
dihybrid....
A dihybrid female fly having a gray body and normal wings (genotype b+/b vg+/vg) is crossed to a male with black body and vestigial wings (genotype b/b vg/vg). Their offspring have phenotypes in the following numbers: Gray body, normal wings 150 Black body, vestigial wings 159 Gray body, vestigial wings 42 Black body, normal wings 39 What kind of cross is this Testcross involving...
Can you please help me with this problem: 3. The allele b gives Drosophila flies a...
Can you please help me with this problem:
3. The allele b gives Drosophila flies a black body, and b+ gives brown, the wild type phenotype. The allele wx of a separate gene gives waxy wings, and wx+ gives nonwaxy, the wild type phenotype. The allele cn of a third gene gives cinnabar eyes, and cn+ gives red, the wild-type phenotype. A female heterozygous for these three genes is testcrossed, and 1000 progeny are classified as follows: 5 wild type;...
Explain Both and Answer Thank You The eyeless trait is recessive in Drosophila. One of the...
Explain Both and Answer Thank You
The eyeless trait is recessive in Drosophila. One of the offspring of a cross between heterozygote (Ee) parents has eyes. How would you determine whether this fly is homozygous (EE) or heterozygous (Ee)? Cross it with a fly that has eyes but an unknown genotype Cross it with a heterozygous fly Cross it with an eyeless fly Cross it with a fly that has eyes and an EE genotype Question 23 3 pts A...
Please explain thoroughly, I have no idea how to solve a problem like this (drawing if...
Please explain thoroughly, I have no idea how to solve a problem
like this (drawing if possible). Also answer will need to be a
decimal.
a gene on chromosome 2 and black body b is recessive to wild type body b. The trait of purple eyes is controlled by In the fruit fly Drosophila melanogaster, the trait of black body is due a gene that is also on chromosome 2 and purple eyes p is recessive to wild type eyes...
I'm not sure how to do part B, please help, and show the work if you...
I'm not sure how to do part B, please help, and show the work
if you can!
6-3 A cross between an Hfr bacterial strain with genotype val" met" tyr is crossed with an F strain with genotype val met" tyr". Val is known to enter last, and so val" recombinants are selected on medium that contains no val (only met and tyr). Recombinant colonies are then tested for met* and tyr*. The table summarizes the results. 0.8% O.1 -...
For Drosophila, let’s consider three genes a, b, and c. We know where a and b...
For Drosophila, let’s consider three genes a, b, and c. We know where a and b are located, and have a nice idea about c. You conduct a three-point cross to figure it out for sure. We’ll use a, b, & c to refer to the three mutants, and + to refer to the wild-types. Here are the progeny counts from a heterozygote by homozygous mutant wild-type: a, b, c: 770 +, +, +: 384 a, +, +: 80 +,...
Drosophila Genetic Mapping
+++98abc99++c257a+c217ab+264+b+214a++484+bc477The data set tabulated above presents the results of a testcross using female flies heterozygous for three traits and male flies, which are homozygous recessive. For simplicity, mutant alleles are shown with letters a, b, and c, and wildtype alleles are indicated by a “+” symbol.Determine the gene order (which gene is in the middle?)Construct a genetic map for the three genes, including the map distances between them. Clearly indicate the logic you followed and show all your calculations. Include...
Data Set B presents the results of a testcross using female flies heterzygous for three traits...
Data Set B presents the results of a testcross using female
flies heterzygous for three traits and male flies, which are
homozygous recessive for the same three traits.
Part B Data set B presents the results of a testcross using female flies heterozygous for three traits and male flies, which are homozygous recessive for the same three traits. For this part of the report do the following: a) Attach your data set to your report. b) Clearly indicate parental, SCO...
How do you do this The result below are from a fruit fly triple point test...
How do you do this The result below are from a fruit fly triple point test cross Phenotype number of progeny wild type 283 all mutant 278 Black, spineless 50 Red 52 Spineless 5 Red, Black 3 Black 43 Red, spineless 41 A. What is the order and distance in map units between the three genes? B. What are the genotypes of the parents that produced these offspring?
Question 5 (14 marks) The allele cn gives fruit flies cinnabar eyes, whereas the allele cn gives red, the wild-type phenotype. The allele wx of a separate allele gives waxy wings, and wx gives non-waxy wings (wild-type). The allele b of a third gene gives fruit flies a black body, whereas the allele b gives a brown (wild-type) body colour. A geneticist knows these three genes are on the same chromosome, but does not know what order the genes are...
Plz i feel like i am getting this wrong! by the way my answer is
dihybrid....
A dihybrid female fly having a gray body and normal wings (genotype b+/b vg+/vg) is crossed to a male with black body and vestigial wings (genotype b/b vg/vg). Their offspring have phenotypes in the following numbers: Gray body, normal wings 150 Black body, vestigial wings 159 Gray body, vestigial wings 42 Black body, normal wings 39 What kind of cross is this Testcross involving...
Can you please help me with this problem:
3. The allele b gives Drosophila flies a black body, and b+ gives brown, the wild type phenotype. The allele wx of a separate gene gives waxy wings, and wx+ gives nonwaxy, the wild type phenotype. The allele cn of a third gene gives cinnabar eyes, and cn+ gives red, the wild-type phenotype. A female heterozygous for these three genes is testcrossed, and 1000 progeny are classified as follows: 5 wild type;...
Explain Both and Answer Thank You
The eyeless trait is recessive in Drosophila. One of the offspring of a cross between heterozygote (Ee) parents has eyes. How would you determine whether this fly is homozygous (EE) or heterozygous (Ee)? Cross it with a fly that has eyes but an unknown genotype Cross it with a heterozygous fly Cross it with an eyeless fly Cross it with a fly that has eyes and an EE genotype Question 23 3 pts A...
Please explain thoroughly, I have no idea how to solve a problem
like this (drawing if possible). Also answer will need to be a
decimal.
a gene on chromosome 2 and black body b is recessive to wild type body b. The trait of purple eyes is controlled by In the fruit fly Drosophila melanogaster, the trait of black body is due a gene that is also on chromosome 2 and purple eyes p is recessive to wild type eyes...
I'm not sure how to do part B, please help, and show the work
if you can!
6-3 A cross between an Hfr bacterial strain with genotype val" met" tyr is crossed with an F strain with genotype val met" tyr". Val is known to enter last, and so val" recombinants are selected on medium that contains no val (only met and tyr). Recombinant colonies are then tested for met* and tyr*. The table summarizes the results. 0.8% O.1 -...
Data Set B presents the results of a testcross using female
flies heterzygous for three traits and male flies, which are
homozygous recessive for the same three traits.
Part B Data set B presents the results of a testcross using female flies heterozygous for three traits and male flies, which are homozygous recessive for the same three traits. For this part of the report do the following: a) Attach your data set to your report. b) Clearly indicate parental, SCO...
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