genetic, Biology

Assignment Help:
1. The genes for ruby eyes (rb), tan body (t) and cut wings (ct) are all found on the X-chromosome of Drosophila melanogaster. All of these are recessive traits. They map in the order rb, ct, t with 12.5 map units between rb and ct and 7.5 map units between ct and t. Suppose you cross a cut wing male with a homozygous female that is both tan and has ruby eyes.
a. What will the F1 females look like?
b. Draw map of the section of the X chromosomes that has these 3 genes for the F1 females
c. Assume you testcross your F1 females.
i. What progeny classes would you expect?
ii. Give approximate numbers for each class based on a total of 2000 progeny.
1. Assuming the i=1 and there are no double crossovers.
2. Assuming the i=0 and there are the expected number of double crossovers.


Related Discussions:- genetic

Why two atoms always represent the same element, Two atoms always represent...

Two atoms always represent the same element if they have. A) the same number of particles in the nucleus. B) The same number of electrons. C) The same number of shells. D) The same

Determines the abo blood group system, What is the type of genetic inherita...

What is the type of genetic inheritance that determines the ABO blood group system? What are the relations of dominance among the involved alleles? The inheritance of the ABO b

What is intra oral and extra oral, What is Intra oral and Extra Oral A...

What is Intra oral and Extra Oral A) Intra oral a) Frontal in occlusion b) Left and right occlusion (Using intra oral photography mirror) c) Occlusal view maxillary

What are the segments that form the body of the tapeworm, What are the segm...

What are the segments that form the body of the tapeworm called? What is their function? The body of the tapeworm is made of segments known as proglottids. The proglottids are

What are some examples of secretory cells, What are some examples of secret...

What are some examples of secretory cells? Endocrine and exocrine pancreatic cells, thyroid and parathyroid endocrine cells, adenohypophysis, adrenal and pineal endocrine cell

Enhancer, The enhancer is the cis-acting nucleotide series to which the tra...

The enhancer is the cis-acting nucleotide series to which the transcription factor(s) bind, and which increases transcription of the gene. It is not part of the promoter; the gener

Assignment, Structure and development of leaf

Structure and development of leaf

Precautions for estimation of sucrose by fehling soxhlet, Explain Precautio...

Explain Precautions for Estimation of Sucrose by Fehling Soxhlet Method? 1. Maintain proper temperature of the water bath for complete hydrolysis. 2. Add distilled water to

Off pump surgery , OFF PUMP SURGERY :  In spite of great advancements in t...

OFF PUMP SURGERY :  In spite of great advancements in techniques of cardio pulmonary bypass, it is still not physiological. There can be various complications related to perfusion

Illustrate the conductance of potassium channels, A decrease in parasympath...

A decrease in parasympathetic discharge to the heart leads to A. an increase in the conductance of F-channels in SA node cells. B. a decrease in the conductance of potassium

Write Your Message!

Captcha
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