Does the environment exert an influence on the phenotype, Biology

Assignment Help:

Does the environment exert an influence on the phenotype?

The phenotype may be altered (compared to the original situation conditioned by its genotype) by nongenetic means, instances: some hormones may cease to be secreted due to diseases but the genes that determine their secretion remain intact, a person can go to a hairdresser and change the color of his/her hair, plastic surgery can be performed to alter facial features of an individual. The colored contact lenses may be worn but a plant can grow beyond its genetically conditioned size by application of the phytohormones.

The Revealing cases of environmental influence on phenotypes are observed in monozygotic twins that have grown in various places. Generally these twins present extremely distinct phenotypical features due to the environmental and cultural differences of the places where they lived and to their different individual experiences in life.

(The Biologically programmed phenotypical changes like nonpathological changes of the skin color caused by sunlight exposure, tanning, or the variation of the color of some flowers according to the pH of the soil cannot be considered independent from genotype. In reality these changes are planned by the genotype as natural adaptations to environmental changes.)

 


Related Discussions:- Does the environment exert an influence on the phenotype

Agro industrial-feeding management, Feeding management Feeding management ...

Feeding management Feeding management deals about the in-house management in which the feed consumption pattern is well understood in the sheds and suitable alterations are made

Economic dimensions of financing healthcare, Economic Dimensions of Financi...

Economic Dimensions of Financing Healthcare Establishment of adequate healthcare services, accessible/affordable to all sections of the society, is an important function of th

Explain echinocandins, Explain Echinocandins It inhibit synthesis of β ...

Explain Echinocandins It inhibit synthesis of β (1,3)-D-glucan, an essential component of the fungal cell wall. The potential for adverse effects in humans is low because of th

How do antibody-based tests detect how hiv infection work, Q. How do antibo...

Q. How do antibody-based tests detect how HIV infection works? Subsequent to the infection by the HIV the immune system begins the production of antibodies (primary immune resp

Discuss in brief about headaches, Discuss in brief about the Headaches ...

Discuss in brief about the Headaches Headache is so common among the general population that rare indeed is the person who has never suffered one. Headache may constitute a neu

Thymus gland, THYMU S GLAND Flat, bilobed gland located in the medi...

THYMU S GLAND Flat, bilobed gland located in the mediastinal space in front of heart. Well developed in new born child and grows upto puberty but starts degenerating the

Determine the biocompatibility of the material, Determine the Biocompatibil...

Determine the Biocompatibility of the material It is a vital factor as we have discussed in detail in the preceeding part of this unit. The nature of the material and its surf

What is ecology, What is Ecology? Ecology is the field of Biology that ...

What is Ecology? Ecology is the field of Biology that studies the relationship among living beings and among living beings and the environment.

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