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

Who are atopic individuals, Atopic individuals are those who are having abn...

Atopic individuals are those who are having abnormal high levels of circulating IgE and more than normal number of oesinophils.

Gill slits, Gill slits are the opening or the clefts between the gill arch...

Gill slits are the opening or the clefts between the gill arches in the fish. Water taken in by the mouth passes through the gill slits and bathes the gills. It also has rudimenta

Injury to adrenal cortex, Injury to adrenal cortex is not likely to affect ...

Injury to adrenal cortex is not likely to affect the secretion of which one of the following? 1. Aldosterone 2. Both Androstenedione and Dehydroepiandrosterone 3. Adrenali

Define the contraceptive morbidity, Define the Contraceptive Morbidity ...

Define the Contraceptive Morbidity Contraceptive morbidity, which covers any condition that result from efforts (other than abortion) to limit fertility, whether they are tradi

Explain bioluminescence - ethological approach in taxonomy, Explain Biolumi...

Explain Bioluminescence - Ethological Approach in Taxonomy In those animals which exhibit bioluminescence. The pattern produced by the bioluminescence is used in taxonomy. It h

Mechanisms of speciation, In the previous section we discussed the concept ...

In the previous section we discussed the concept of species in detail and concluded that the concept of biological species and Mayr's definition of species have a wide acceptance a

Class of crustacea - branchiura, Class of Crustacea - Branchiura Branc...

Class of Crustacea - Branchiura Branchiura involves only around 130 species of ectoparasitic crustaceans living mostly on the integument and gill cavities of freshwater and ma

Sorbic acid and its salts -preservative, Normal 0 false fa...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Determine the categories of Taxonomic breakdown, For convenience, living th...

For convenience, living things are placed into different groups. Taxonomic breakdown of living things comprises the following categories: Family, Class, Genus, Phylum, Order, K

Define growth studies for studying nutrient requirement, Define Growth Stud...

Define Growth Studies for studying Nutrient Requirement? Nutrient requirements of infants and young children are estimated by studying the rate of growth of healthy children 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