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 result from unbridled continued of the population, Relative to carryin...

Relative to carrying capacity, what may result from unbridled continued growth of our population.

Trends in succession - ecology, Trends in Succession - Ecology Success...

Trends in Succession - Ecology Succession is an important aspect of change in ecosystems and a simple description of successional communities the beginning of the story. We ne

Microbiology, Assume that after washing your hands, you leave ten bacteria ...

Assume that after washing your hands, you leave ten bacteria cells on a new bar of soap. You then decide to do a plate count of the soap after it was left in the soap dish for 24 h

Proteins requirement in diabetes, Q. Proteins requirement in diabetes? ...

Q. Proteins requirement in diabetes? Proteins: Proteins should be provided in adequate amounts to maintain a normal body composition and prevent depletion of lean tissue mass.

Assessment of aplastic anaemia, Assessment   The patient will present w...

Assessment   The patient will present with striking pallor, irritability and lethargy due to anaemia, bledding or bruising and petechiae due to thrombocytopenia, fever and infe

Who was gregor mendel, Who was Gregor Mendel? Mendel is considered the ...

Who was Gregor Mendel? Mendel is considered the father of Genetics. He was a monk, biologist and botanist born in Austria in 1822 and who died in 1884. During the years 1853 to

Characteristic features of phylum arthropoda, Characteristic Features of Ph...

Characteristic Features of Phylum Arthropoda Well-developed muscular system along with striated muscles attached to the exoskeleton, and visceral organs having smoot

Is phenoxyethanol harmful?, Phenoxyethanol is dangerous and can be absorbed...

Phenoxyethanol is dangerous and can be absorbed through the skin - official sites for toxicity data, though, show little toxicity in man and some toxicity (irritation) with high do

Protozoa, Advantages and disadvantages of protozoa

Advantages and disadvantages of protozoa

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