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

Biochemistry pathway of normal and cancer cell, Biochemistry pathway of nor...

Biochemistry pathway of normal and cancer cell Normal cells will separate within the presence of a chemical signal like as "growth factor" (GF). Other molecular signals

Homeostasis., drawandlabelthemajorendocrineglandsinthehumanbody

drawandlabelthemajorendocrineglandsinthehumanbody

Skeletal system - vertebral column, VERTEBRAL COLUMN - It is curved ...

VERTEBRAL COLUMN - It is curved vertical about 70 cms. long. It consists of 33 vertebrae (after fusion 26). It shows 4 curvatures - (i) Cervical curvatures

Why is water conservation in c3 c4 and cam plants important, Why is water c...

Why is water conservation in c3 c4 and cam plants important? Cam stands for Crassulacean acid metabolism. C3 and C4 conserve less water than Cam plants. Actually, C4 plan

Animal nutrition, Briefly explain the following feeding mechanisms in holoz...

Briefly explain the following feeding mechanisms in holozoic organisms: filer feeding,fluid feeding and deposit feeding.

Cardinal manifestation of cardiovascular disorders, CARDINAL MANIFESTATION ...

CARDINAL MANIFESTATION OF CARDIOVASCULAR DISORDERS Cardiovascular symptoms that most often trouble patients are: 1. Chest Pain 2. Shortness of Breath 3. Palpitation

Economic significance - conservation of wildlife, Economic Significance - C...

Economic Significance - Conservation of Wildlife Certain wild species are important because of their actual or potential economic value to people. Wildlife resources provide p

Explain the carrying capacity in ecology, Explain the carrying capacity in ...

Explain the carrying capacity in ecology? Carrying Capacity :  We have seen that natural populations do not normally achieve the maximum intrinsic rate of natural increase, o

How to determines the actual availability of nutrients, How to determines t...

How to determines the actual availability of nutrients The amount of a particular nutrient determined analytically does not necessarily represent what is available but is merel

The concentration of purified dna, In an experiment, it was necessary that ...

In an experiment, it was necessary that you determine the concentration of dsDNA by using a spectrophotometer. You used 6 microliters of your purified dsDNA, and the reading at OD=

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