What is an evolutionary tree, Biology

Assignment Help:

What is an evolutionary tree? Is there a precise evolutionary tree known by science that explains the emergence and origin of every type of living being?

Evolutionary tree is the pictorial and schematic showing of evolutionary relations among species of living beings in which the trunk (or a preceding branch) shows common ascendants of species and groups of living beings that are distributed along its branches according to hypothesis on their origin. For instance, today it is admitted that birds and mammals are two distinct branches of the similar preceding reptile branch.

Biology cannot assure a exact evolutionary tree (phylogeny) on the species of living beings that live or have lived in our planet. There are many data to be discovered and many knowledge gaps to be filled. One of the most promising methods to study phylogeny is the comparison of DNA molecules from different groups of living beings researching similarity and dissimilarity in nucleotide sequences that may show more or less relatedness among species.

 


Related Discussions:- What is an evolutionary tree

Describe in brief about failing implant, Describe in brief about failing im...

Describe in brief about failing implant The failing implant may show evidence of pocketing, bleeding upon probing, purulence, and indicates the bone loss patterns are progressi

Possible recombinant genotypes, A woman is heterozygous for three X-linked ...

A woman is heterozygous for three X-linked loci: AaBbDd. She has seven sons with the following genotypes: two are X ABd Y three are X abD Y one is X ABD Y one is X Abd

Define protein requirement during thyphoid, Protein Protein: The requir...

Protein Protein: The requirement of protein is increased in typhoid, as  there  is  a massive tissue loss. Thus, the protein intake should be increased above the normal of  lg/

Gene targeting, Gene targeting: There is always a debate on gene integrat...

Gene targeting: There is always a debate on gene integration in to the host animal. It is random gene integration Vs gene targeting. Perhaps most significantly, pro-nuclear in

Catalogue of larval forms in various animal groups, Catalogue of Larval For...

Catalogue of Larval Forms in Various Animal Groups The larval stages and types found in different groups are many. Each larval type has a different structure and is known by a

Histogenesis and organogenesis, Histogenesis and Organogenesis After t...

Histogenesis and Organogenesis After the octant stage numerous cell divisions occur in various planes. The proembryo become globular or bulb-shaped. As a general rule, some ta

Flowering and endogenous rhythms, Flowering and Endogenous Rhythms Th...

Flowering and Endogenous Rhythms The last four decades of studies in animals and plant physiology have clearly established the existence of a biological clock mechanism to me

Blood pressure with the phenomena of systole and diastole, Q. What is the r...

Q. What is the relation between the maximum and the minimum blood pressure with the phenomena of systole and diastole? A minimum blood pressure is the pressure on the wall of t

What is the life cycle of the schistosome, What is the life cycle of the sc...

What is the life cycle of the schistosome? Male and female adult schistosomes live in blood vessels of the human intestines. The females release eggs that trespass the vessel w

Illustrate physiological evidence, Q. Illustrate Physiological Evidence ? ...

Q. Illustrate Physiological Evidence ? Physiological and biochemical evidence is providing data of increasing importance to plant systematic. Recently, it has become apparent t

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