What is polygenic inheritance?, Biology

Assignment Help:

What is polygenic inheritance? How does it work?

 The Polygenic inheritance, also called as quantitative inheritance, is the gene interaction in which a given trait is conditioned by numerous different genes having alleles that may or may not contribute to increase the phenotype intensity. The alleles may be noncontributing or contributing and there is no dominance among them and the Polygenic inheritance is the kind of inheritance, for instance, of skin color and of stature in humans.

Considering a given species of the animal in which the length of the individual is conditioned by polygenic inheritance of three genes, for the genotype having only noncontributing alleles (aabbcc) a basal phenotype, for instance, 30 cm, would emerge. Considering also that for every contributing allele a 5 cm increase in the length of the animal is added, so in the genotype having only contributing alleles (AABBCC) the animal would present the basal phenotype (30 cm) plus 30 cm more added by each contributing allele that is its length would be 60 cm. In case of triple heterozygosity, for instance, the length of the animal would be 45 cm. i.e. the way the polygenic inheritance works.

 


Related Discussions:- What is polygenic inheritance?

Bacteria, wine turns sour beause of the action of which bacteria? aerobic o...

wine turns sour beause of the action of which bacteria? aerobic or anerobic?

What would its new ph be if the concentration of h3o ion, If a solution has...

If a solution has a pH of 7.5, what would its new pH be if the concentration of H 3 O ions in the solution were increased by 100 times? Explain your reasoning. As a tenfold inc

Explain about common congenital heart diseases, Explain about common congen...

Explain about common congenital heart diseases ? Congenital Heart Disease is commonly classified as acyanotic and cyanotic. Acyanotic Left to right shunts Obstructive Lesion

What do you mean by neuronal repolarization, Q. In chemical terms how is th...

Q. In chemical terms how is the neuronal repolarization achieved? Repolarization is the return of the membrane probable from the action potential (+35 mV) to the resting potent

Medtronic-hall valve-types of valves, Medtronic-Hall Valve :  This is...

Medtronic-Hall Valve :  This is a low profile central tilting disc valve. The disc is made of pyrolitic carbon and housing is single piece of machined titanium. Introduced in

Locomotion, Locomotory apparatus in protozoa

Locomotory apparatus in protozoa

Historical review of developmental biology, HISTORICA L REVIEW Anox...

HISTORICA L REVIEW Anoximander (600 B.C.) was the first western philospher who proposed the idea that "living creatures arose from the moist element". Empedocles (500 B.

Explain the process of growth factors, Explain the process by which growth ...

Explain the process by which growth factors promote angiogenesis. Add citation or links.

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