Determine the map distances between these loci

Assignment Help Biology
Reference no: EM13149114

A particular Drosophila female that is wild-type in appearance is known to be heterozygous for the three recessive mutations black body (b), curved wings (c) and purple eyes (p). When this female is testcrossed, the following progeny result:
Black body, purple eyes - 27
Curved wings -23
Black body, curved wings - 361
Purple eyes -379
Black body - 92
Curved wings, purple eyes - 108
Wild type - 6
Black body, curved wings, purple eyes - 4

a. Determine the order of these three genes on chromosome 2 of Drosophila. Diagram the allelic arrangement of these three genes on the two homologs carried by the heterozygous female used in this testcross. Indicate the correct gene order.

b. Determine the map distances between these loci. Show your calculations.

c. Determine an interference value for this genetic interval. Show your calculations.

Reference no: EM13149114

Questions Cloud

Predict the proportion of gamete types from the testcross : In maize the genes Pl for purple leaves (dominant over green leaves); sm for salmon silk ( recessive for yellow silk) and py for pigmy plant (recessive to normal size) are on chromosome 6 at positions 45, 55 and 65 respectively. Predict the propor..
What is the pka for the acid : What is the pKa for the acid HA if a solution of 0.65 M HA and 0.85 M NaA has a pH of 4.75?
What is the coefficient of coincidence : Assume that investigators crossed a strain of flies carrying the dominant eye mutation Lobe on the second chromosome with a strain homozygous for the second chromosome recessive mutations smooth abdomen and straw body.
What is the ph of a buffer : What is the pH of a buffer that consists of 0.20 M NaH2PO4 and 0.40 M Na2HPO4? Ka = 6.2 × 10-8
Determine the map distances between these loci : A particular Drosophila female that is wild-type in appearance is known to be heterozygous for the three recessive mutations black body (b), curved wings (c) and purple eyes (p).
What is the ph of the solution : A 20.0-mL sample of 0.25 M HNO3 is titrated with 0.15 M Na OH. What is the pH of the solution after 30.0 mL of NaOH have been added to the acid?
Explain elementary steps that make up the mechanism : Analyzing a new reaction Consider the following elementary steps that make up the mechanism of a certain reaction: 2X -> Y + Z Y + L -> M + Z Part A What is the overall reaction
How would the chromosome of the daughter cells look : Assume that mammalian cells are grown in culture in the prescence of fluorescent nucleotides for several generations so that all of the DNA in all the chromosomes is fluorescent.
What is the ph of a buffer : What is the pH of a buffer that consists of 0.45 M CH3COOH and 0.35 M CH3COONa? Ka = 1.8 × 10-5

Reviews

Write a Review

Biology Questions & Answers

  Immune response to infectious disease

It is a very curcial concept to understand how the immune response is mounted against viruses, bacteria, protozoans and helminthes. For an effective immune response, both innate and adaptive immunity should work together.

  A review on advanced glycated end products (ages)

This Project report elaborates a critical review of important elements attached to Advanced Glycated End Products (AGEs). It is very crucial to understand the process called Millard reaction.

  Plastic as a soil stabilizer

Soil stabilization is the permanent physical and chemical alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and control the shrink-swell properties.

  Principles of microbiology

This assignment has three parts which contains questions related to Microbiology. It contains basic principles of microscopy, staining techniques in microbiology and microbial growth in the food industry.

  List the biologic functions

Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?

  Biologic function relationships

Please describe how one might search for chemical structure, biologic function relationships, involving small molecular weight lipophylic compounds. Provide one example.

  Case study on patient in the haematology laboratory

Write a case study which detailing a scenario of a patient being investigated in the Haematology laboratory.

  Use of pcr and genetic approaches in biotechnology

The use of PCR and genetic approaches in biotechnology

  Describe the role of this enzyme in honey

Glucose oxidase is an enzyme that can be used for measurements of glucose levels by combining this reaction with an oxygen probe.

  Genetic problems

What phenotypic ratio would you get if you crossed a white mouse and a heterozygous brown mouse?

  Prepare an essay on nosocomial infection

Prepare an essay on nosocomial infection.

  Monitoring and recording the blood pressure

To increase the awareness of monitoring and recording the blood pressure of patients and practice measuring blood pressure in a safe environment.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd