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 the function of the iris and of the pupil, What is the function of ...

What is the function of the iris and of the pupil? The iris works like the diaphragm of a photographic camera as it has muscles that contract or relax varying the pupil diamete

Describe aerobic respiration in krebs cycle, Q. Until the Krebs cycle, aero...

Q. Until the Krebs cycle, aerobic respiration can be described without mentioning oxygen, the chemical element after which the reaction gets its name. Where in the process does thi

Assignment, Structure and development of leaf

Structure and development of leaf

How do bacteria reproduce, How do bacteria reproduce? Bacteria replicat...

How do bacteria reproduce? Bacteria replicate by binary fission (scissiparity). Some bacteria though present a kind of sexual reproduction (transformation, transduction or conj

Genetic terminology, GENETIC TERMINOLOGY (i)         Gene - Mendel us...

GENETIC TERMINOLOGY (i)         Gene - Mendel used the term factor for a gene. A gene is the unit of DNA responsible for the appearance and inheritance of character. (ii)

Chromosomes, how many arrs are present in mataphasic telocentric chromosome...

how many arrs are present in mataphasic telocentric chromosomes

How are roots affected by water, How are roots affected by water? Grow ...

How are roots affected by water? Grow some seedlings in single end of a glass dish or pan. When they are about 5 cm tall start watering them on one side only and a little dista

Precautions for determination of iodine number of lipids, Precautions for d...

Precautions for determination of iodine number of lipids? 1. If using the pipette for transferring the oil, allow the pipette to drain slowly and completely, as oil takes time

What is meant by unsaturation or saturation of oils and fats, Q. What is me...

Q. What is meant by unsaturation or saturation of oils and fats? When it is said that a triglyceride is saturated it means that in its molecule the carbon chain is bound in its

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