Gene interactions (post mendelian genetics), Biology

Assignment Help:

GENE INTERACTIONS (POST MENDELIAN GENETICS)

Phenotypic expression of a gene may be altered by the influence of other genes. The modification of the normal phenotype of certain genes by other genes is known as gene interaction.

The gene interaction is of 2 types : intragenic or interallelic and intergenic or nonallelic.

1. Intragenic Interactions

These interactions occur between the two alleles of same gene to produce a phenotype different from the normal dominant - recessive phenotype. The common intragenic interactions are incomplete dominance, codominance, multiple alleles.

2. Intergenic Interactions

These interactions occur between the alleles of different genes present on the same or different chromosomes to alter the normal phenotype. The familiar intergenic interactions include complementary genes, supplementary genes, polygenes, epistasis, pleiotropy, lethal genes etc.


Related Discussions:- Gene interactions (post mendelian genetics)

Stomatal resistance, Stomatal Resistance Stomatal resistance is most i...

Stomatal Resistance Stomatal resistance is most important because gas exchange between leaves and external atmosphere takes place entirely through stomatal pores. Stomatal res

Pharmacognosy, Pharmacognosy :  This is the study of medicinal plants. Phar...

Pharmacognosy :  This is the study of medicinal plants. Pharmacognosy is a kind of the study of medicines which are derived from natural sources. The American Society of Pharmacogn

Describe splitting of in second heart, Describe Splitting of S 2 ? On...

Describe Splitting of S 2 ? On inspiration: The split widens as both A, and Pi move away from each other with p, moving out more. The negative intrathoracic pressure during

Explain the chemical properties of monosaccharides, Explain the Chemical Pr...

Explain the Chemical Properties of Monosaccharides? As you already know the chemical properties of monosaccharides depend on the presence of the hydroxyl the aldehyde or the ke

Which part of human brain is relay station for sensory input, The part of h...

The part of human brain which is a significant relay station for the sensory impulses and also is the origin of many of the involuntary acts of eye such as narrowing of the pupil i

Define cerebral hemisphere tissue, Q. Define cerebral hemisphere tissue? ...

Q. Define cerebral hemisphere tissue? CEREBRAL WHITE MATTER - The remaining cerebral hemisphere tissue is the deeper cerebral white matter (60% of cerebral volume) which includ

Biomass energy, Biomass energy Energy produced by burning biomass it is...

Biomass energy Energy produced by burning biomass it is known as biomass energy. When biomass is burnt, it releases stored chemical energy, which has accumulated in it through

Predict the genotypes and phenotypes of the f2, In rats, the gene pigment (...

In rats, the gene pigment (P) is dominant to no pigment (p). The gene for black (B) is dominant to the gene for cream (b). If a pigment gene (P) is absent, genes B and b are inoper

Neurophysics Assignment Help, What is Neurophysics Neurophysics is the ...

What is Neurophysics Neurophysics is the field of biophysics dealing with nervous system. Neurophysics covers a extensive spectrum of phenomena from molecular & cellular mechan

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