How do genetic mutations influence biological diversity, Biology

Assignment Help:

How do genetic mutations influence biological diversity?

Too frequent or too extensive genetic mutations usually are deleterious for individuals and species. These mutations frequently cause important phenotypical changes or defects incompatible with the survival of the body and the continuity of the species

Though small genetic mutations that do not cause the appearing of lethal changes are continuously accumulated in the genetic patrimony of the species. These mutations slowly add to each other giving birth to small phenotypical changes in individuals and these small changes are exposed to the selective criticism of the environment (natural selection) and the more favorable for survival and reproduction are preserved (the remaider are eliminated as their carriers have difficulty in surviving and reproducing). In this manner a combined processes of accumulation of small mutations and of natural selection incorporate new features in the species and they may even lead to speciation (formation of new species) and promotion of biological diversity (Obviously only genetic mutations transmitted by cells that originate new individuals, in sexual or asexual reproduction, have evolutionary effect.)

 


Related Discussions:- How do genetic mutations influence biological diversity

Phylum protozoa, what is the classificatin of phylum protozoa with orders

what is the classificatin of phylum protozoa with orders

Analysis of amino acid sequence on particular peptide, Define Analysis of A...

Define Analysis of Amino Acid sequence on Particular Peptide? The analysis of the relative order or the sequence in which the ammo acids are arranged-along the length of the

State about the neuropsychological assessment, State about the Neuropsychol...

State about the Neuropsychological assessment Neuropsychological assessment provides information concerning the status of brain function across the life span. It does so primar

What is tyrosinemia, Q. What is Tyrosinemia? There are two forms of her...

Q. What is Tyrosinemia? There are two forms of hereditary tyrosinemia. They are tyrosinemia Type I and tyrosinemia Type II. Type I was thought to be due to a deficiency of para

Does each amino acid have a central carbon, Q. Does each amino acid have a ...

Q. Does each amino acid have a central carbon? To which organic group is that central carbon bound? A carboxyl group -NH 2 , an atom of hydrogen - COOH, an amine group-H and a

What is atrial fibrillation, Q. What is Atrial Fibrillation ? As the le...

Q. What is Atrial Fibrillation ? As the left atrial size increase and atrial wall gets fibrosed, depolarization wave fronts get fragmented and atrial fibrillation sets in. Atri

Explain in brief - chitinous, Explain in brief Chitinous? A structure w...

Explain in brief Chitinous? A structure which is composed of chitin, a complex carbohydrate composed of linearly arranged Nacetyl-glucosamine units. Chitin is a characteristic

Define the prevalence and incidence of bulimia nervosa, Define the Prevalen...

Define the Prevalence and Incidence of bulimia nervosa? Bulimia nervosa appears to have become more prevalent during the past 30 years. We do not have much data on Indian popul

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