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

Uses of drugs, USES OF DRUGS - 1.       Drugs are prescribed as medicin...

USES OF DRUGS - 1.       Drugs are prescribed as medicines to prevent or cure a variety of diseases. 2.       May be used to promot physical and mental health. 3.       U

Morphogenesis of an ectodermal derivative, Morphogenesis of an Ectodermal D...

Morphogenesis of an Ectodermal Derivative During the development of vertebrate body the dissimilar regions in the three germ layers of the gastrula become segregated from each

Describe the procedure of femoral approach, Q. Describe the procedure of fe...

Q. Describe the procedure of femoral approach? The catheter is inserted into the femoral sheath and advanced to the level of the left mainstem bronchus over the guidewire. Aft

Micro biology, explane the role of nitrogenase enzyme

explane the role of nitrogenase enzyme

Determine the categories of sleep disorders, Determine the categories of sl...

Determine the categories of sleep disorders Sleep disorders are generally divided into two major groups: 1) Narcolepsy, which is characterised by excessive sleep or brief in

Descibe the lymphatic system, Q. What is the lymphatic system? The lymp...

Q. What is the lymphatic system? The lymphatic system is a network of specialized valved vessels that drain interstitial fluid (lymph), the lymphatic system is as well responsi

Define the fats requirement to avoid underweight problem, Define the Fats r...

Define the Fats requirement to avoid underweight problem?   We know that fats are concentrated source of energy (1g = 9 Kcals). Fats are capable of increasing the energy val

Characters of vitamins, Characters of vitamins: Vitamins are organic...

Characters of vitamins: Vitamins are organic substances. They are micronutrients and are required in small quantities. They are not synthesised in the body and therefo

What is passive transport , The passive transport of molecules across a me...

The passive transport of molecules across a membrane does not require an input of metabolic energy. Rate of the diffusion or transport is proportional to the concentration gradient

Gonads, GONADS - They develop from the mesoderm of the embryo. The g...

GONADS - They develop from the mesoderm of the embryo. The gonads are the sex glands; the ovaries and the testes. They produce ova and sperms respectively i.e. cytogenic in

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