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)

Illustrate the effect of the drugs, Which of the following is an effect of ...

Which of the following is an effect of the following drugs? A. Drug A is an agonist of the Vasopressin2 Receptor (V2R).  High levels of Drug A in the extracellular spaces surro

Non-poisonous snakes, Snakes Non-poisonous snakes can be brought into t...

Snakes Non-poisonous snakes can be brought into the classroom for observation. The diagram shows how a safe cage can be made for keeping a snake. The bottom should be covered w

Illustrate photochemical phase, Q. Which are the subproducts of the photoch...

Q. Which are the subproducts of the photochemical phase that are essential for the chemical stage of photosynthesis? The chemical stage of photosynthesis depends on ATP and NAD

Zoology, general features of protochordates

general features of protochordates

Nuclear transfer method for gene transfer, Nuclear transfer method: Nucle...

Nuclear transfer method: Nuclear transfer will extend the range of species in which gene targeting will be possible and thereby provide better models to test treatments for human

How to increase in sodium conductance, How to increase in sodium conductanc...

How to increase in sodium conductance A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM.  The neuron is healthy.  At 2 AM, the ph

What are gonads, What are gonads? What are the male and the female gonads i...

What are gonads? What are the male and the female gonads in humans? Gonads are the organs that make gametes. They have the germ cells that undergo division and generate gametes

What are the uses of squid fins, What are the uses of squid fins? Fins ...

What are the uses of squid fins? Fins are used by squids to move at low speeds. Their siphon is used when they require moving quickly.

Ultrasonic removal of gutta percha, Ultrasonic removal of Gutta percha: ...

Ultrasonic removal of Gutta percha: -the piezoelestic ultrasonic system. - As the instruments is energized; producing heat to themosoften gutta-percha. - Float gutta-perc

Avian leukosis (sarcoma group of retroviruses), A v i a n leukosis (Sar...

A v i a n leukosis (Sarcoma group of retroviruses) This is a complex of viral diseases caused by an avian retrovirus with various manifestations such as lymphoid leukosis,

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