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)

Explain total anomalous pulmonary, Explain Total Anomalous pulmonary Venous...

Explain Total Anomalous pulmonary Venous Connection (TAPVC) ? In this congenital anomaly there is no direct communication between the pulmonary veins and the left atrium. All

What is the significance of malpighian tubules, What is the significance of...

What is the significance of Malpighian tubules? Excretory structures found in insects and some spiders. Though similar in appearance and function the two aren't homologous. Mal

Describe components of a complete diagnosis, Describe Components of a Compl...

Describe Components of a Complete Diagnosis of Congenital Heart Disease ? A complete diagnosis of congenital heart disease requires accurate and thorough description of the he

State the term - aneurysms, State the term - Aneurysms Aneurysms are va...

State the term - Aneurysms Aneurysms are vascular dilations resulting from localised defects in the elasticity of a vessel. They can be visualised as balloon like expansions of

Define low water permeability across the luminal membranes, A healthy perso...

A healthy person is on a diet that having of very small amounts of water. A. This person will make a large volume of dilute urine with low amounts of dissolved solutes. B. T

Anatomical reason for the left bronchus to be more elevated, Q. What is the...

Q. What is the anatomical reason for the left bronchus to be more elevated than the right bronchus? Why in most cases of aspiration of foreign material by children is the object fo

Explain pediculosis and scabies, Pediculosis and scabies  Phthirus pubi...

Pediculosis and scabies  Phthirus pubis (pubic lice), which can be found on eyelashes, back, axillary and leg hairs as well as pubic areas, and Sarcoptes scabiei infestation (s

What are chloroplasts, What is the main function of chloroplasts? Ans) C...

What is the main function of chloroplasts? Ans) Chloroplasts are organelles represent in the cytoplasm of plant and algae cells. Similarly mitochondria, chloroplasts have two bo

Radiolarians - protozoan, Radiolarians - Protozoan Radiolarians are en...

Radiolarians - Protozoan Radiolarians are entirely marine planktonic species with spherical bodies and radiating pseudopodia known as axopods. The spherical body is divided in

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