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

Illustrate about the chemical disinfection, Illustrate about the Chemical d...

Illustrate about the Chemical disinfection Sharp waste may cause injury and person may have diseases like Hepatitis B, Cand HIV/AIDS. Therefore it is important for to understa

How does phosphorus cycle vary from carbon cycle, (a) Trace the succession ...

(a) Trace the succession of plants on a dry bare rock. (b) How does phosphorus cycle vary from carbon cycle?

What is gastrulation, What is gastrulation? How during gastrulation are the...

What is gastrulation? How during gastrulation are the first two germ layers formed? What are these germ layers? Gastrulation is the process by which a portion of the blastula w

What is respiration quotient, a) Where casparian strips situated in a plant...

a) Where casparian strips situated in a plant body are and what are they made up of? Mention its function. b) What is respiration quotient (RQ)? Under what conditions will th

LIFE PROCESSES, WHAT IS HEART? AND WHAT THEY DO WORK IN OUR BODY.

WHAT IS HEART? AND WHAT THEY DO WORK IN OUR BODY.

Learning objectives of gastrointestinal disease, Q. Learning objectives of ...

Q. Learning objectives of gastrointestinal disease? • explain the disease conditions, causes, complications of the disorders of the gastrointestinal tract, • discuss the ef

Explain digestion system, DIGESTION Digestive enzymes break down food p...

DIGESTION Digestive enzymes break down food particles into smaller units. You will see  that the final breakdown products of protein digestion are single amino acids or small c

Define gelatin - tests for presence of exoenzymatic activity, Explain Gelat...

Explain Gelatin - Tests for Presence of Exoenzymatic Activity? Gelatin is an incomplete protein as it lacks amino acid tryptophan. It is a major component of connective tissue

Aceolomates, what are phylums included in aceolomates?

what are phylums included in aceolomates?

What are the three main signs of diabetes, What are the three main signs of...

What are the three main signs of diabetes? The three main signs of diabetes mellitus are called as the diabetic triad: polyuria, polydipsia and polyphagia. Polyuria is the e

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