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

Sources of water are to contain pathogenic bacteria, What sources of water ...

What sources of water are (a) most likely, (b) least likely to contain pathogenic bacteria?   (a) Water most likely to have pathogenic bacteria will be that which receives u

Which is an isotope of pgisphorous, The most abundant from of phosphorous h...

The most abundant from of phosphorous has 15 protos, 16 neutrons and 15 electrons. Which of the following is an isotope of pgisphorous? (make all correct choices) A. an atom wit

Excretory system, is thare any excretory system found in echinoderms

is thare any excretory system found in echinoderms

What is the endocrine function of the placenta, Q. What is the endocrine fu...

Q. What is the endocrine function of the placenta? The placenta is not a permanent gland of the endocrine system other than this it also has endocrinal function. The placenta p

What was lamarcks explanation for the succession, What was Lamarck's explan...

What was Lamarck's explanation for the succession of fossils in a given location? ps: I want to the idea for the succession of fossils, not the whole difference between Darwin and

Biological functions in which chlorine ions participate, Q. What are the ma...

Q. What are the major biological functions in which chlorine ions participate? Like sodium cations, chlorine anions actively participate in the regulation of the osmolarity of

How cells of neoplastic tumors obtain oxygen and nutrients, Q. How do cells...

Q. How do cells of neoplastic tumors obtain oxygen and nutrients and release wastes? In the neoplastic tumors a phenomenon called as angiogenesis occurs. The Angiogenesis is th

Phylum Arthropoda, What is an example of animal coming from the phylum art...

What is an example of animal coming from the phylum arthropoda?

Soil pollution, Soil is upper crust of earth which support land plants and ...

Soil is upper crust of earth which support land plants and animals. It is defined as addition of substances to the soil, which adversely affect physical, chemical? And biologica

Describe about investigative tools and their optimal use, Describe about In...

Describe about Investigative Tools and their Optimal Use ? The investigative tools that are available for diagnosis of CHD include ECG, chest X-ray, 2D and Doppler echocardiog

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