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?

How to measure blood pressure, Q. How to measure Blood Pressure? With t...

Q. How to measure Blood Pressure? With the onset of exercise, the resistance to blood flow through contracting muscles decreases significantly and results in a fall in the peri

Process to reduce their concentrations in the synaptic cleft, Q. Since neur...

Q. Since neurotransmitters are not consumed in the synaptic process  What are the mechanisms to reduce their concentrations in the synaptic cleft after they have been used?

Flagellated protozoan, Flagellated Protozoan These are protozoan th...

Flagellated Protozoan These are protozoan that move by means of one or more flagella and include the largest number of species, about 6,800.  Asexual reproduction is by

Differences between prokaryotes and eukaryotes, Differences between Prokary...

Differences between Prokaryotes and Eukaryotes It is obvious that there are a number of differences between them. Prokaryotes, like bacterial cells are generally much smaller,

What is autologous transfusion, Question 1 What is autologous transfusi...

Question 1 What is autologous transfusion? Discuss how would you handle and prepare blood for autologous blood transfusion. List the advantages of autologous transfusion Qu

Explain about non ionising radiation, Q. Explain about Non ionising radiati...

Q. Explain about Non ionising radiation? Non ionising radiation include infrared and UV rays. Lethal effect is through generation of heat and DNA damage. Penetration is low but

Genotype for each individual, The allele that causes albinism (p) is recess...

The allele that causes albinism (p) is recessive to the allele for normal pigmentation (P). A normal woman whose father is an albino marries an albino man whose parents are both no

Intergenic interactions, what are intergenic interactions ? please explain ...

what are intergenic interactions ? please explain with example of cross breeding. and how we calculate the phenotype and genotype. explain epistasis, duplicate genes, supplementary

What is nadp and nadph, What is NADP and NADPH? NADP is the abbreviatio...

What is NADP and NADPH? NADP is the abbreviation of the nicotinamide adenine dinucleotide phosphate cation, a hydrogen acceptor. NADPH is made when NADP binds to one hydrogen a

Philum colenterata, What are the economic importance of colenterata

What are the economic importance of colenterata

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