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

Poultry and duck diseases-avian encephalomyelitis, Avian encephalomyelitis ...

Avian encephalomyelitis This is an acute infectious disease of birds (3 weeks old), which is caused by a member of the genus Enterovirus in the family Picornaviridae. Epid

What is pericardial effusion, Q. What is pericardial effusion? A perica...

Q. What is pericardial effusion? A pericardial effusion is viewed as an echo free space surrounding the heart, most commonly seen posteriorly. Echocardiography provides

Explain 2nd type of hypersensitivity, It is IgG mediated cytotoxic hyperse...

It is IgG mediated cytotoxic hypersensitivity. Typical manifestations contain erythroblastosis fetalis, hemolytic anemia, blood transfusion reactions etc.

Colour coding rules for biomedical waste management, Q. Discuss the colour ...

Q. Discuss the colour coding rules for biomedical waste management and handling? Colour coding biomedical waste( management and handling) rules, 1998

Explain global burden in the history of mart disease, Explain Global burden...

Explain Global burden in the history of mart disease? In 2001, 17 million people died of CVD of all types. The most important causes were ischemic heart disease (IHD), Hyperten

What do you know about tricuspid stenosis, Q. What do you know about Tricus...

Q. What do you know about Tricuspid stenosis? It is rare disease, with rheumatic etiology seen in 90 per cent of cases. In patients with rheumatic mitral stenosis only 3-5 per

Why ups is so important to health practitioners, Give a short explanation o...

Give a short explanation of what UPS really means and why it is so important to health practitioners and consumers/patients.

Atelectasis and pneumonia - complications of cardiac surgery, Atelectasis a...

Atelectasis and Pneumonia Signs and symptoms are LV failure, hypovolemia, hypervolemia or renal vasoconstriction. Decreased breath sounds, poor ABG and poor cough reflex

Chemical stress - nature of the solutes, Chemical Stress - Nature of the so...

Chemical Stress - Nature of the solutes The acidic or basic reaction of soil and water of a particular habitat reflects its geochemical history beginning with its formation an

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