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

Glucose-6-phosphate, Three molecules of ducose-6-phosphate  yield 3 molecul...

Three molecules of ducose-6-phosphate  yield 3 molecules of CO,  and 3 molecules of five carbon residues (pentose sugar). The latter are converted ultimately to  2 molecules  of  g

Weaning the infant from the incubator, Weaning the Infant from the Incuba...

Weaning the Infant from the Incubator When heater output reading is minimal or nil it suggest that infant is capable of generating enough metabolic heat to keep himself war

From which substances is chromatin made, Chromatin is made of DNA molecules...

Chromatin is made of DNA molecules associated to proteins known as histones.

Determine the significance of siphuncle., Determine the significance of Sip...

Determine the significance of Siphuncle. A cord of tissue that passes between different chambers of a Nautilid shell. Siphuncle regulates the amount of air or fluid in chambers

Zoology, what are the excretory organ of protozoa ?

what are the excretory organ of protozoa ?

Natural and artificial ecosystem, Natural and Artificial Ecosystem i) N...

Natural and Artificial Ecosystem i) Natural ecosystems are those which are mostly free from human disturbances, such as tropical forests, grasslands, oceans, lakes and deserts.

What is folic acid, What is folic acid? Why is the anemia caused by deficie...

What is folic acid? Why is the anemia caused by deficiency of folic acid known as megaloblastic anemia? The folic acid (when ionized it is known as folate) is a coenzyme that

Poverty and malnutrition, Poverty and Malnutrition Poverty and malnutr...

Poverty and Malnutrition Poverty and malnutrition are closely related. As noted before, many elementary aspects of being poor like hunger, inadequate health care, unhygienic l

Gibberellins - plant growth substances, Gibberellins - Plant Growth Substan...

Gibberellins - Plant Growth Substances In late 1920's Kurosawa observed that the medium in which the fungus Gibberella had grown could cause the abnormal tallness in rice seed

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