What is speciation, Biology

Assignment Help:

What is speciation?

The Speciation is the process by which different species emerge from a common ancestor species. The Speciation generally begins when populations of the same species become geographically isolated, that is when they are separated by some physical barrier that disallows crossing between individuals from one population and individuals of another population.

A Group that for a long time is kept under geographical isolation tends to accumulate different phenotypical characteristics from each other by means of genetic variability (mutations and recombination) and natural selection and when those differences reach a point that makes the crossing of individuals of one group with individuals of the other group not possible or the generation of fertile offspring no longer happens it is said that speciation has occurred.

 


Related Discussions:- What is speciation

What is carbohydrates, What is Carbohydrates? Carbohydrates : Carbohyd...

What is Carbohydrates? Carbohydrates : Carbohydrates function mainly as immediate sources of energy, stored energy such as starch, and structural components of cells. Carbohyd

Explain stress and psychosocial tension in lifestyle risk, Explain Stress a...

Explain Stress and Psychosocial Tension in lifestyle risk factors? Stress and psychosocial tension are other lifestyle factors in initiating coronary artery disease and precipi

What is interpretation of stress echocardiography, Q. What is Interpretatio...

Q. What is Interpretation of Stress Echocardiography? The standard approach to interpretation is qualitative. The attendant need for training and problems posed for reproducibi

Name the common nitrogen-fixer in paddy field, The common nitrogen-fixer in...

The common nitrogen-fixer in paddy fields is: 1. Rhizobium 2. Azospirillum 3. Oscillatoria 4. Frankia Azospirillum is the common nitrogen-fixer in paddy fields

Define the estimation of haemoglobin in blood, Define the Estimation of Hae...

Define the Estimation of Haemoglobin in Blood? Several methods are used to determine haemoglobin. In these methods hemoglobin is measured as oxyhaemoglobin, carboxyhaemoglobin,

Is the epithelium vascularized, Q. Is the epithelium vascularized? How do o...

Q. Is the epithelium vascularized? How do oxygen and nutrients reach the epithelium? Why is this feature an important evolutionary acquisition? Epithelia are not vascularized c

Mixed mitral stenosis and regurgitation, Mixed Mitral Stenosis and Regurgit...

Mixed Mitral Stenosis and Regurgitation The most common cause for a combined lesion is rheumatic, Very rarely; it could be of congenital origin. Regurgitation in a stenotic val

Define starch gelatinisation, Starch Gelatinisation Starch is insolubl...

Starch Gelatinisation Starch is insoluble in cold water but in warm water it swells until its gelatinization temperature begins to lose its structure and leaches out its  8con

Introduction to avian infectious diseases, Poultry birds are affected with ...

Poultry birds are affected with many types of ailments; broadly these are classified on the basis of etiology as non-infectious and infectious conditions. Non-infectious diseases a

Activation of a fatty acid, Small-  and  medium-chain   acyl  CoA  molecule...

Small-  and  medium-chain   acyl  CoA  molecules  (up  to  10  carbon  atoms)  are readily capable to cross the inner mitochondrial  membrane by diffusion. Furthermore, longer chai

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