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?

Explain membrane permeability, A pure  phospholipid  bilayer with  its  hyd...

A pure  phospholipid  bilayer with  its  hydrophobic  interior,  is permeable  to water and gases such as O2, CO2, N2 and small uncharged  polar molecules such as urea, ethanol, bu

What is cellular regeneration, What is cellular regeneration? How is mitosi...

What is cellular regeneration? How is mitosis related to this process? Some tissues are able to regenerate when injured. The liver, for instance, regenerates when small pieces

Name the nitrogenous waste excreted in the larval, What benefit does the se...

What benefit does the sea anemone get in the sea anemone-hermit crab facultative mutualism? Give an alternative term for this part of mutualism. Name the nitrogenous wast

Explain structure-activity relationships, Structure-activity relationships ...

Structure-activity relationships Structure-activity relationships may be useful to increase the weight-of-evidence or human health hazards identification. Where classes of comp

Determine the stabilized forms of natural colourants, Stabilized forms of n...

Stabilized forms of natural colourants The mimicking of the native environment in which a natural colour exists is just one way of producing a stabilized form. In this case, th

Subphylum trilobitomorpha, Subphylum Trilobitomorpha Subphylum Trilobi...

Subphylum Trilobitomorpha Subphylum Trilobitomorpha involves the trilobites. All species are extinct and the fossils point out that they were all marine forms belonging to Pal

Meat snack products, S n a c k Products Meat snacks such as curls; ...

S n a c k Products Meat snacks such as curls; chips are made from sliced, whole meat and comminuted meat. Extruded snacks are made from meat and non meat ingredients. Extru

Explain non-nucleoside reverse transcriptase inhibitors, Non-nucleoside rev...

Non-nucleoside reverse transcriptase inhibitors (NNRTIs) - These drugs are direct, non-nucleoside inhibitors of HIV-1 reverse transcriptase. Combinations of an NNRTI with NRTIs

Describe three ways that rna differs from dna, Describe three ways that RNA...

Describe three ways that RNA differs from DNA. RNA is single stranded; DNA is double stranded all of the codons from the deletion point to the end of the transcript would be s

Controlled hypothermia, Controlled Hypothermia Although birds and mamm...

Controlled Hypothermia Although birds and mammals frequently function in the homeothermic mode and maintain relatively high stable temperatures, many mammals and some birds ha

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