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

How campylobacteriosis occurs in humans, How CAMPYLOBACTERIOSIS  occurs in...

How CAMPYLOBACTERIOSIS  occurs in humans C. jejuni frequently contaminates raw chicken. Survey shows that 20-100% of retail chickens are contaminated. Many healthy chickens car

Explain the sarcomere, For a sarcomere of a skeletal muscle, define the fol...

For a sarcomere of a skeletal muscle, define the following terms: A is the length of the A Band; H is the length of the H Zone; I is the total length of the I Bands in the sarcomer

Define function of the iron uptake by cells, Define Function of the Iron Up...

Define Function of the Iron Uptake by Cells? Iron has several vital functions in the body. It serves as a carrier of oxygen to the tissues from the lungs by red blood cell haem

Explain the term health, Explain the term 'health' Mention any two ways of ...

Explain the term 'health' Mention any two ways of maintaining it. Why does a doctor administer tetanus antitoxin and not a tetanus vaccine to a child Injured in a roadside acci

Exogenous pathway, In the typical Western diet approximately 80-140 G trigl...

In the typical Western diet approximately 80-140 G triglyceride and 0.5-1.5 G cholesterol are eaten daily. Following digestion, absorption and reesterification, triglyceride and c

Describe the uses of pupil, Describe the uses of pupil Variation in the...

Describe the uses of pupil Variation in the size, shape or reaction usually indicates some form of disease, disorder or use of medication. The pupil is usually dilated by the u

What is fern allies - equisetum, What is Fern Allies - Equisetum ? The ...

What is Fern Allies - Equisetum ? The earliest land plants are thought to have evolved from green algal ancestors, since they share many features. Both green algae and plants h

Define counseling and compliance for celiac disease, Define Counseling and ...

Define Counseling and compliance for celiac disease? If symptoms do not improve, the child's diet should be reviewed and evaluated. A decrease in diarrhoea, increase in height

Control and informative function of organic molecules, Q. What are the few ...

Q. What are the few examples of the control and informative function of organic molecules? Based on genetic information, organic molecules control the entire work of the cell.

Define protein requirements for physical fitness, Define Protein Requiremen...

Define Protein Requirements for physical fitness? Proteins provide energy to the body. Since exercise may increase an athlete's need for protein, depending on the type and freq

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