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)

Briefly describe the mechanism, List and briefly describe the mechanisms th...

List and briefly describe the mechanisms that prevent acid-base imbalances from appearing in the body. In addition, indicate where each mechanism functions most significantly.

List the different suturing techniques, List the different suturing techniq...

List the different suturing techniques There are a various suturing techniques each suited for a particular situation. Few of the common suturing techniques are: i) Interrup

Long-chain fatty acids, Fatty acid breakdown brings about the oxidation of ...

Fatty acid breakdown brings about the oxidation of long-chain fatty acids. The fatty acids are first transformed to their acyl CoA (coenzyme A) derivatives and then degraded by the

What is juvenile mitral stenosis, Q. What is Juvenile Mitral Stenosis ? ...

Q. What is Juvenile Mitral Stenosis ? Peculiar to developing countries is the problem of juvenile mitral stenosis. Patients with rheumatic fever develop tight mitral stenosis i

Pleural biopsy, Pleural Biopsy Pleural biopsy is one of the diagnostic...

Pleural Biopsy Pleural biopsy is one of the diagnostic procedure which may  cause lot of anxiety in  the patient. Procedure Pleural biopsies may be preformed surg

How are a hypothesis and an experiment related, How are a hypothesis, a pre...

How are a hypothesis, a prediction, and an experiment related? A prediction is a statement made in advance that declares the results that will be get from testing a hypothesis

Define effect of deficiency of chromiumin humans, Define Effect of Deficien...

Define Effect of Deficiency of chromiumin humans? Hallmark of marginal chromium deficiency is impaired glucose tolerance. Individuals receiving TPN without chromium have been s

What is large intestine in human biology, What is Large Intestine in human ...

What is Large Intestine in human biology? Food undigested in the small intestine is passed on by peristalsis into the large intestine, or colon. The intestine is composed of ci

Cooking of vitamin c-containing foods, Q. Why isn't the cooking of vitamin ...

Q. Why isn't the cooking of vitamin C-containing foods appropriate for vitamin C supply? To obtain vitamin C, for instance, from an orange dessert, the vitamin- containing food

Production efficiency - ecosystem, Production Efficiency - Ecosystem T...

Production Efficiency - Ecosystem The maximum amount of solar energy harvested by plants is about 5 per cent but the average for green plants, on the whole is only a small fra

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