Homework Answers
Recombination frequency is a ratio of no. of recombinant offsprings and the total number of offsprings, multiplied by 100.
Normally, expected test cross ratio is 1:1:1:1 but here observed ratio is different. Combinations with high frequency are parental combinations and with less frequency are recombinants.
The distance between two genes is calculated by linkage mapping where 1% recombination is equal to 1 map unit or centimorgan.
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4. Given the following data, what is the recombination frequency between these genes for squash color...
Given the following data, what is the recombination frequency between these genes for squash color (red,...
Given the following data, what is the recombination frequency between these genes for squash color (red, yellow) and squash shape (log, oval)? What is the distance between the two genes in centiMorgans (or map units)? Phenotype Progeny from test cross 46 44 Red, long Yellow, oval Red, oval Yellow, long Total 5 100
please show all work Given the following data, what is the recombination frequency between these genes...
please show all work
Given the following data, what is the recombination frequency between these genes for squash color (red, yellow) and squash shape (log, oval)? What is the distance between the two genes in centiMorgans (or map units)? Phenotype Progeny from test cross 46 44 Red, long Yellow, oval Red, oval Yellow, long Total 100
Given the following data, what is the recombination frequency between these genes for squash color (red,...
Given the following data, what is the recombination frequency between these genes for squash color (red, yellow) and squash shape (log, oval)? What is the distance between the two genes in centiMorgans (or map units)? For full credit, you must show your work, i.e. how you made your calculations. (4 points) 3. Answer this question based on the following information. For full credit, you must clearly show how or explain how you came to this answer. Fur color in Labrador...
please show all work for 2 & 3 2. Given the following data, what is the...
please show all work for 2 & 3
2. Given the following data, what is the recombination frequency? Select an answer below and show how you made your calculaton. Phenotype Progeny from test cross 46 44 Red, long Yellow, oval Red, oval Yellow, long Total a) 45% b) 5% c) 10% d) 90% 3. The genes dumpy (dp), clot (cl), and apterous (ap) are linked on chromosome II of Drosophila. In a series of two-point mapping crosses, the following genetic...
I included everything here , but i only need help with parts C-F You are working...
I included everything here , but i only need help with parts
C-F
You are working with a hypothetical fly and have found color and wing mutants. Preliminary work indicates that the mutant traits are recessive and the associated genes are not sex-linked, but beyond that you have no information. You first look at 2 genes, each with two alleles: "Borb" for body color and "Wor w" for wing surface. The red body phenotype is dominant to the yellow body...
4. You are studying three genes in corn and performed a three-point cross. The three genes...
4. You are studying three genes in corn and performed a three-point cross. The three genes are green (V) vs Viniscent (V) seedlings, blue (Pr) vs red kernels (pr) and white (B ) or brown (bm) leaf midrib color. The table below list the offspring resulting from a testcross with a female F1 heterozygote. Type of gamete (NR, SCO, DCO Phenotype Progeny Gamete from F1 heterozygote Virescent seedling red 101 kernel Red kernel 175 Red kernel, brown midrib 259 Virescent...
Two independently assorting genes help determine fruit color in squash. At the first locus, the W...
Two independently assorting genes help determine fruit color in squash. At the first locus, the W allele codes for a dominant white phenotype, whereas the w allele allows colored squash. At the second locus, the allele Y codes for a dominant yellow phenotype, and the allele y codes for a recessive green phenotype. The interaction between these two genes is an example of dominant epistasis, with the W locus acting as the epistatic locus and the Y locus acting as...
4. In summer squash, fruit color and shape are controlled by two independently assorting genes as...
4. In summer squash, fruit color and shape are controlled by two independently assorting genes as follows: Trait Gene Alleles Phenotypes Fruit color W W w White fruit yellow fruit Fruit shape D D d Disk-shaped fruit sphere-shaped fruit A homozygous White Disk plant has been crossed with a homozygous Yellow Sphere plant (this is the P1 generation). List the expected genotype and phenotype of the F1 plants? P1 WWDD x wwdd F1 WwDd Genotype: WwDd Phenotype: White, Disk If...
6. (7 points) Dr. O. Sophila is a famous geneticist who studies recombination of genes in...
6. (7 points) Dr. O. Sophila is a famous geneticist who studies recombination of genes in fruit flies. She is studying the relationship between a gene vermillion (v) that gives flies purple eyes and is recessive to the wildtype red eye color (vt) and the gene yellow (y) that gives flies a yellow body color compared to the dominant brown body color (y) Dr. Sophila has generated females heterozygous for the two different mutations and performs a testcross with mutant...
You've discovered a new plant species in which green fruit color (g) is recessive to yellow...
You've discovered a new plant species in which
green fruit color (g) is recessive to yellow fruit
color (G), and
long fruit shape (l) is recessive to round fruit shape
(L).
The genes for fruit color and shape are located on the same
chromosome and are 12 m.u. apart.
I would appreciate an explanation, thank you!
Part E Determine the proportions of progeny of each phenotype produced for this cross GigL x GL/gl View Available Hint(s) Reset Help 0% 3%...
Given the following data, what is the recombination frequency between these genes for squash color (red, yellow) and squash shape (log, oval)? What is the distance between the two genes in centiMorgans (or map units)? Phenotype Progeny from test cross 46 44 Red, long Yellow, oval Red, oval Yellow, long Total 5 100
please show all work
Given the following data, what is the recombination frequency between these genes for squash color (red, yellow) and squash shape (log, oval)? What is the distance between the two genes in centiMorgans (or map units)? Phenotype Progeny from test cross 46 44 Red, long Yellow, oval Red, oval Yellow, long Total 100
Given the following data, what is the recombination frequency between these genes for squash color (red, yellow) and squash shape (log, oval)? What is the distance between the two genes in centiMorgans (or map units)? For full credit, you must show your work, i.e. how you made your calculations. (4 points) 3. Answer this question based on the following information. For full credit, you must clearly show how or explain how you came to this answer. Fur color in Labrador...
please show all work for 2 & 3
2. Given the following data, what is the recombination frequency? Select an answer below and show how you made your calculaton. Phenotype Progeny from test cross 46 44 Red, long Yellow, oval Red, oval Yellow, long Total a) 45% b) 5% c) 10% d) 90% 3. The genes dumpy (dp), clot (cl), and apterous (ap) are linked on chromosome II of Drosophila. In a series of two-point mapping crosses, the following genetic...
I included everything here , but i only need help with parts
C-F
You are working with a hypothetical fly and have found color and wing mutants. Preliminary work indicates that the mutant traits are recessive and the associated genes are not sex-linked, but beyond that you have no information. You first look at 2 genes, each with two alleles: "Borb" for body color and "Wor w" for wing surface. The red body phenotype is dominant to the yellow body...
4. You are studying three genes in corn and performed a three-point cross. The three genes are green (V) vs Viniscent (V) seedlings, blue (Pr) vs red kernels (pr) and white (B ) or brown (bm) leaf midrib color. The table below list the offspring resulting from a testcross with a female F1 heterozygote. Type of gamete (NR, SCO, DCO Phenotype Progeny Gamete from F1 heterozygote Virescent seedling red 101 kernel Red kernel 175 Red kernel, brown midrib 259 Virescent...
6. (7 points) Dr. O. Sophila is a famous geneticist who studies recombination of genes in fruit flies. She is studying the relationship between a gene vermillion (v) that gives flies purple eyes and is recessive to the wildtype red eye color (vt) and the gene yellow (y) that gives flies a yellow body color compared to the dominant brown body color (y) Dr. Sophila has generated females heterozygous for the two different mutations and performs a testcross with mutant...
You've discovered a new plant species in which
green fruit color (g) is recessive to yellow fruit
color (G), and
long fruit shape (l) is recessive to round fruit shape
(L).
The genes for fruit color and shape are located on the same
chromosome and are 12 m.u. apart.
I would appreciate an explanation, thank you!
Part E Determine the proportions of progeny of each phenotype produced for this cross GigL x GL/gl View Available Hint(s) Reset Help 0% 3%...
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