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

Phylum placozoa, Phylum Placozoa The phylum Placozoa contains a single...

Phylum Placozoa The phylum Placozoa contains a single species of a minute marine animal Trichoplax adharens composed of a dorsal and ventral epithelial layer enclosing loose m

Define interaction of vitamin k with calcium, Define interaction of vitamin...

Define interaction of vitamin k with Calcium? Since vitamin D functions have an impact on calcium metabolism, an inter-relationship exists between vitamin IS-dependent proteins

BiologicaL METHODS.., GIVE THE SHORT DETAIL OF HE BIOLOGICAL METHODS

GIVE THE SHORT DETAIL OF HE BIOLOGICAL METHODS

Explain operational taxonomic units - numerical taxonomy, Explain Operation...

Explain Operational Taxonomic Units - Numerical Taxonomy 1) Then the characters to be used for studying the OTUs are selected. Usually a large number of characters are taken as

How are living beings divided into two groups, According to cellular organi...

According to cellular organization how are living beings divided into two groups? Cellular beings are separated into two groups: the prokaryotes, unicellular beings whose sole

Chances of clinical risks, A foreign DNA has to target a precise chromosoma...

A foreign DNA has to target a precise chromosomal site and integrate with the host DNA. Are the methods of gene therapy strong enough to produce desired expression without mistakes

Define hydration properties of proteins, Define Hydration Properties of Pro...

Define Hydration Properties of Proteins? General conformation of individual proteins in solution is largely dependent on the interaction with water. The progressive hydration o

What is the relationship between these cells and hiv, Q. What are CD4 lymph...

Q. What are CD4 lymphocytes? What is the relationship between these cells and HIV? How does HIV replicate? The CD4 lymphocytes are T helper lymphocytes that present in their pl

Do plants have tissue organization and specialized organs, Do plants have t...

Do plants have tissue organization and specialized organs? Plants have specialized organs (as reproductive organs, roots, limbs, leaves) and differentiated tissues (vascular t

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