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

Define interaction of folate with vitamin b12, Define interaction of folate...

Define interaction of folate with vitamin B 12 ? Vitamin B 12 : For the conversion of folic acid to folinic acid, vitamin B 12 is required. Vitamin BIZ deficiency caus

Define nutrient requirements during the periods of pregnancy, Define nutrie...

Define nutrient requirements during the periods of pregnancy? In the previous unit, we learnt about the basic principles of meal planning and the various considerations and gui

Why are herbivores considered similar to predators, (a) Why are herbivores ...

(a) Why are herbivores considered similar to predators in the ecological context Describe? (b)   Differentiate among the following interspecific interactions  in a population :

Determine about the degenerative diseases, Determine about the degenerative...

Determine about the degenerative diseases Immune responses in brain can quickly spiral out of control and cause further harm. In degenerative diseases such as Parkinson's, Alz

Budding - types of asexual reproduction, Budding - Types of Asexual Reprodu...

Budding - Types of Asexual Reproduction In reproduction through budding, small groups of cells form buds in some part or parts of the parent animal. The bud grows, differentia

Determine major aspects of the mechanism of freeze drying, Determine Major ...

Determine Major Aspects of the Mechanism of Freeze Drying? The major aspects of the mechanism of freeze drying are:  (a) The removal of vapour from the subliming ice front w

Urea, notes on urea

notes on urea

Define etiology - anorexia nervosa, Define Etiology - Anorexia Nervosa? ...

Define Etiology - Anorexia Nervosa? The exact cause of eating disorders is not known. It is multi factorial in origin in which the personality of the patient, family relationsh

Scientific methord, how adoctor dicide a sickness of a patiant

how adoctor dicide a sickness of a patiant

Roller pump- type of blood pump, Roller Pump: This is the type most commo...

Roller Pump: This is the type most commonly used in clinical perfusion. It has a circular metal housing inside which there is a rotating urn with two rollers fixed at 180 degrees

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