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

ZOOLOGY, POLYMORPHISM IN COLENTRATAtion..

POLYMORPHISM IN COLENTRATAtion..

Explain about observation and classification of arthropoda, Explain about t...

Explain about the Observation and Classification of Arthropoda? Introduction In the previous unit you have examined the representatives of artliropoda.  In this unit, you wi

In which lysosomic enzymes play a fundamental role, Q. What are the various...

Q. What are the various biological examples in which lysosomic enzymes play a fundamental role? The remodelation of the osseous tissue, the function of the elimination of the t

Role of microorganism in fermentation foods, Normal 0 false f...

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

Endocrine glands - gastro-intestinal mucosa, GASTRO-INTESTINA L MUCOSA - ...

GASTRO-INTESTINA L MUCOSA - It develops from the endoderm of the embryo. Inner most layer of the wall of the alimentary canal is called mucosa. Certain cells of the mucosa

Gene targeting in somatic cells, Gene targeting in somatic cells: Since t...

Gene targeting in somatic cells: Since the pioneering work with sheep at Roslin cloning by nuclear transfer has now been exemplified in a number of other livestock species includ

Define about the food effects on drug metabolism, Define about the Food Eff...

Define about the Food Effects on Drug Metabolism? The general tendency of the process of metabolism is to transform a drug from a lipid- soluble to a more water-soluble compoun

Describe what types of results describe hypothesis, Why did giraffes develo...

Why did giraffes develop long necks? 1) Describe an experiment to test this hypothesis. Be explicit about the methods you will use, the setting, the time that the experiment wil

Valve thrombosis-complications of prosthetic valves, Valve Thrombosis :  ...

Valve Thrombosis :  Valve thrombosis causes sudden deterioration of the patient's haemodyarnics. A stuck valve may produce both stenosis and incompetence. If diagnosed early s

Brodmann areas, One way that the cortex has been parcellated is based on fi...

One way that the cortex has been parcellated is based on fine-grained anatomical differences in the composition of the cortical layers: their thickness and types of neurons that ar

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