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

What is..., What is antistaphylococcal prophylaxis and pseudomonas aerugino...

What is antistaphylococcal prophylaxis and pseudomonas aeruginosa? I''m doing a project on cystic fibrosis, and I''m curious what these terms have to do with the disease. Thanks!

Which are the main positive ions found in living beings, Which are the main...

Which are the main positive ions found in living beings? The major cations found in living beings are the sodium cation (Na+), the potassium cation (K+), the calcium cation (Ca

What is meant by cellular secretion, What is meant by cellular secretion? ...

What is meant by cellular secretion? Cell secretion is the elimination to the exterior of substances formed by the cell (for instance, hormones, mucus, sweat, etc.)

The z-gene codes for permease, Select the two correct statements out of the...

Select the two correct statements out of the four (a - d) given below about lac operon. 1. Glucose or galactose may bind with the repressor and inactivate it 2. In the absenc

What do you understand by the term accommodation, (a) What do you understan...

(a) What do you understand by the term 'accommodation'? (b) What part does the lens play in this process?   a) Accommodation is the way the eye can focus either

Direction of flow, Direction of flow--either towards or away from the trans...

Direction of flow--either towards or away from the transducer (positive or negative Doppler shifts). Timing-instantaneous velocity and direction of flow throughout the various

How to prevent or overcome this nutritional deficiency, How to prevent or o...

How to prevent or overcome this nutritional deficiency?  A large number of government schemes and programmes have been launched about which we have already studied in the Publi

Estimation of protein by availability of amino acids include, Estimation of...

Estimation of protein by Availability of amino acids include? Regeneration of blood and liver constituents includes Liver protein regeneration Blood protein regener

Show the error detection and editing function, Q. Show the Error Detection ...

Q. Show the Error Detection and Editing Function? Error Detection and Editing Function: Consciousness helps us avoid acting solely through habit. It allows us to make novel res

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