Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

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.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M944578

Have any Question? 


Related Questions in Biology

Transgenic organismsthe development of transgenic organisms

Transgenic Organisms The development of transgenic organisms is an established technique in many laboratories. A transgenic organism is an organism that includes DNA from another organism in the cells of its body. This D ...

Elisa uses an enzyme-linked antibody to detect and antigen

ELISA uses an enzyme-linked antibody to detect and antigen. Briefly explain how use of the enzyme is ELISA could amplify the detection of a very small amount of antigen in a sample.

Explain how bacteria reproduce which factor do they rely on

Explain how bacteria reproduce. Which factor do they rely on to increase genetic variation? Discuss the advantage(s) and disadvantage(s) of asexual reproduction in the light of evolution. Explain how meiosis and sexual r ...

During the separation of the different photosynthetic

During the separation of the different photosynthetic pigments of spinach by paper chromatography, how did you know which of the pigments was the least polar? It travelled the farthest on the paper (was the first pigment ...

What is normally presented on the mhc i complex of antigen

What is normally presented on the MHC I complex of Antigen presenting cells? When does it present foreign peptide on its MHC I complex? Can they present self peptides on their MHC I complex, but foreign peptides on their ...

Do you think there are political issues surrounding human

Do you think there are political issues surrounding human population growth? Why or why not? Can you give an example?

What is the difference between prokaryotes and

What is the difference between prokaryotes and eukaryotes?

Cell cycle checkpoints are an important feature of a

Cell cycle checkpoints are an important feature of a dividing cell to reduce errors that can occur in various stages of the cell cycle. Loss of Rb, an important part of the G1-S transition checkpoint, can result in uncon ...

What is the phenotypic ratio that can be used as a

What is the phenotypic ratio that can be used as a hypothesis for a heterozygous dihybrid cross (cross of heterozygotes for two traits) if the traits follow the properties of Mendelian inheritance?

Steroid hormones such as testosterone are derived from

Steroid hormones, such as testosterone, are derived from cholesterol. What type of macromolecule are they?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro