These are the results of a three point test cross in Drosophila for the three loci...

These are the results of a three point test cross in Drosophila for the three loci cv f v: cv + + = 155, cv f + = 78, + f + = 145, cv f v = 274, cv + v = 192, + + v = 72, + f v = 144, + + + = 230. What is the map distance to 2 decimal places between the v and f loci? Hint: Establish gene order first."

Solutions

Expert Solution

Answer has been attached below.

To determine the order of the gene, we have to look two points

- parental phenotype- maximum no phenotype

Double cross over - least no of phenotype

So in between them we have to look at the gene , which is being cross over . The gene which is being cross over located in the middle .

gladiator answered 1 year ago

Next > < Previous

Related Solutions

"These are the results of a three point test cross in Drosophila for the three loci...

"These are the results of a three point test cross in Drosophila for the three loci cv f v: cv + + = 212, + v + = 48, + + + = 606, cv v + = 771, cv f v = 299, cv + f = 52, + f v = 229, + + f = 850. What is the map distance to 2 decimal places between the cv and f loci? Hint: Establish gene order first."

"These are the results of a three point cross in Drosophila for the three loci DEF:...

"These are the results of a three point cross in Drosophila for the three loci DEF: deF =89, dEf =36, DEF =299, dEF =587, def =321, DeF =42, DEf =98, Def =548. The map distance between the E and F loci is 13.12cM. The map distance between the D and F loci is 34.55cM. Calculate the Interference correct to 2 decimal places."

"These are the results of a three point cross in Drosophila for the three loci DEF:...

"These are the results of a three point cross in Drosophila for the three loci DEF: dfE =287, dfe =28, dFe =211, Dfe=600, DfE =300, DFE=76, DFe =333, dFE =401. What is the map distance to 2 decimal places between the D and E loci? Hint: Establish gene order first."

These are the results of a three point cross in Drosophila for the three loci DEF:...

These are the results of a three point cross in Drosophila for the three loci DEF: deF =89, dEf =33, DEF =166, dEF =276, def =187, DeF =42, DEf =98, Def =287. The map distance between the E and F loci is 22.24cM. The map distance between the D and F loci is 36.33cM. Calculate the Interference correct to 2 decimal placess

You are performing a three-point test cross in order to map the order and distance between...

You are performing a three-point test cross in order to map the order and distance between three genes, designated X, Y, and Z, and you obtain the following results: Phenotypes Number Observed + Y + 1 + + Z 72 X + Z 2 X Y + 70 X + + 3 + Y Z 2 X Y Z 0 + + + 0 Which gene is in the middle? a) X b) Y c) Z d)...

The data table below represents offspring generated through a 3 point mapping cross in Drosophila. Use...

The data table below represents offspring generated through a 3 point mapping cross in Drosophila. Use the table to answer the following questions: a. What was the parental cross (parental genotypes)? b. Fill in which phenotype represents the different classes (NCO, DCO, SCOs). c. What is the relative order of the genes? d. What is the map distance (centimorgans) between the first and second genes (region I)? e. What is the map distance (centimorgans) between the second and third genes...

(3) The following is a list of loci from Drosophila melanogaster that have been mapped via...

(3) The following is a list of loci from Drosophila melanogaster that have been mapped via linkage studies. The symbols for the loci have been shortened to one letter, and map distances have been rounded. Here are the map distances, in cM, for all pair-wise combinations of the 7 loci: c-d 50 d-s 50 f-y 3 c-f 11 d-t 12 s-t 50 c-s 7 d-w 50 s-w 19 c-t 50 d-y 50 s-y 21 c-w 12 f-s 18 t-w 50...

32) Normal (wild-type) Drosophila eyes are red. In a cross in Drosophila involving the X-linked recessive...

32) Normal (wild-type) Drosophila eyes are red. In a cross in Drosophila involving the X-linked recessive eye mutation white (resulting in a white eye) and the autosomal recessive eye mutation sepia (resulting in a dark eye), predict the sex and color of the eyes of the offspring from crossing true-breeding parents for parts A) and B) below. White is epistatic to the expression of sepia (i.e., if an eye is white, it cannot also be sepia; i.e., white masks the...

What is a test cross? What is the importance of a test cross? And what are...

What is a test cross? What is the importance of a test cross? And what are the results of a test cross for a single trait?

2: Results obtained from a tension test on a bar of uniform cross section 10 mm...

2: Results obtained from a tension test on a bar of uniform cross section 10 mm x 10 mm subjected to an axial pull of 8000 N were tabulated. The lateral dimensions of the bar were found to be changed to 9.9985 mm x 9.9985 mm while using a material having modulus of rigidity equal to 0.8 x 107 N/cm2. By determining the values for different moduli, identify the properties of material and establish the relationship between them. What changes...

Subjects