Gene interactions (post mendelian genetics), Biology

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.

Posted Date: 10/10/2012 4:11:53 AM | Location : United States







Related Discussions:- Gene interactions (post mendelian genetics), Assignment Help, Ask Question on Gene interactions (post mendelian genetics), Get Answer, Expert's Help, Gene interactions (post mendelian genetics) Discussions

Write discussion on Gene interactions (post mendelian genetics)
Your posts are moderated
Related Questions
What is adaptive radiation? The Adaptive radiation is the appearance of several other species from one common ancestral species that have spread to various regions or environme

For many years, students who have occupied my Molecular Biology course have now applied for lab tech jobs exact after graduation. But I have NEVER had a student fail to obtain a jo

For patients with end-stage heart failure, cardiac transplantation has become a promising therapy especially with the advent of  immunosuppressive therapy and more careful screenin

Soil-Environmental Components The word soil is derived from Latin word 'solum' meaning earthy material in which plants grow. The soil is the consolidated outer layer of the ear

Plasma membrane and cell wall is not the similar thing. Plasma membrane, also known as cell membrane, is the outer membrane common to all living cells and it is made of a phospholi

Photoperiodism was first characterised in : 1. Tobacco 2. Potato 3. Tomato 4. Cotton Tobacco is the first in whic photoperiodism characterised.

Ask queson #Minimum 100 words accepted#sources of fuel which do not depend on fossil fuel

Q. List the counselling skills? Slowly start winding up the contact with the client and the family by providing them support, motivating the client to take care of oneself with

Q. What is vision? Why is vision important for life on earth? Vision is the ability of some living beings to distinguish, to perceive and to interpret luminous stimuli. Visi

Explain the Absorption and Transport of Vitamin E? Absorption of vitamin E from the intestine depends on adequate pancreatic function, biliary secretion and micelle form