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

Explain saquinavir, Explain Saquinavir Saquinavir (SQV, Fortovase, Invi...

Explain Saquinavir Saquinavir (SQV, Fortovase, Invirase) - When administered as a single protease inhibitor, a soft-gel preparation (Fortovase) with improved bioavailability an

Define protection of poly unsaturated fatty acids, Define Protection of pol...

Define Protection of poly unsaturated fatty acids (PUFA) from oxidative damage? The major biological role of vitamin E is to protect PUFAs and other components of cell membrane

Explain genetically modified foods, Normal 0 false false fa...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Nonsurgical retreatment will be the preferred choice, Nonsurgical retreatme...

Nonsurgical retreatment will be the preferred choice -Less invasive .. not cause problem to the pt. -Less traumatic postoperative .. most probably no post operative pain

Kingdoms , phlum,class,characteristics of chromalveolata

phlum,class,characteristics of chromalveolata

What proportion of the progeny, A fish of genotype a/a; B/b is crossed to a...

A fish of genotype a/a; B/b is crossed to a fish whose genotype is A/a; B/b. What proportion of the progeny will be heterozygous for at least one of the genes? (Assume independent

Effect of destruction of microbial barriers, Q. Effect of Destruction of Mi...

Q. Effect of Destruction of Microbial Barriers? Physical damage to the integument allows microbial invasion of the underlying nutrient-rich tissues and it is a common observati

Explain the determination of folic acid, Determination Reductive hydrol...

Determination Reductive hydrolysis of folic acid produces 4-aminobenzoyl glutamic acid which is determined photometrically after  diazotization and coupling with N-(1-naphthyl)

Deficiency diseases-iron deficiency, Iron deficiency Iron plays an ess...

Iron deficiency Iron plays an essential role in oxygen transport in the body as a constituent of haemoglobin where nearly 60% of the body iron is found. Apart from oxygen tran

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