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

Why dietary supplements do not speed up a child''s growth, Why Dietary supp...

Why Dietary supplements do not speed up a child's growth? Dietary supplements do not "speed up" a child's growth and development: There is no scientific evidence that me

Explain the factors on which spoilage of fish depends, Q. Explain the facto...

Q. Explain the factors on which Spoilage of fish depends? i) The type offish. Different types of fish are susceptible to spoilage due to shape and size. A fat fish is suscept

Target tissues and target organs of the neurohypophysis, Q. Which are the t...

Q. Which are the target tissues and target organs of the neurohypophysis? The target organs of oxytocin are the mammary glands and the uterus and target organs of ADH are the k

Horse diseases-vesicular stomatitis, Vesicular stomatitis Vesicular stomat...

Vesicular stomatitis Vesicular stomatitis (VS) is an infectious viral disease of horses, cattle and pigs caused by Vesiculovirus of the family Rhabdoviridae and characterized by f

Indications for surgery-mitral valve disease, Indications for Surgery :  T...

Indications for Surgery :  The normal mitral valve area is 4-5 cm 2 . Usually symptoms appear when the valve area has become less than 2.5 cm2. Symptoms are present at rest when t

Explain the atmospheric dispersion modeling, Explain the Atmospheric Disper...

Explain the Atmospheric Dispersion Modeling 1. Dispersion model is a mathematical description of the meteorological transport and dispersion process that is quantified in terms

What are the major cells of the connective tissue proper, Q. What are the m...

Q. What are the major cells of the connective tissue proper? What is the name given to the intercellular material that surrounds these cells? The major cells of the connective

Into which classes is the phylum annelida divided, Q. Into which classes is...

Q. Into which classes is the phylum Annelida divided? The phylum is divided into three classes: hirudineans (e.g., leeches), oligochaetes (for example, earthworms) and polychae

Determine the importance of behavioural observations, Determine the importa...

Determine the importance of Behavioural observations Behavioural observations are often noteworthy to the extent that they involve alterations in the examiner's usual response

The skeletal system, Where does cartilage occur in a joint and what is its ...

Where does cartilage occur in a joint and what is its function ?

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