Genetics and Evolution

Life on Earth started billions of years ago and has been going strong ever since. Smaller and simpler organisms appeared first as the environment changed, and as the environment changed, simple organisms evolved into complex organisms to survive in the changing climate environment. The term “evolution” is used to describe this process. Charles Darwin provided […]

Adaptive radiation is a process in evolutionary biology where organisms rapidly diversify from an original species into a plethora of new forms, especially when a change in the environment makes new resources available. These also include changes in biotic interactions or the creation of new environmental niches. Starting with a single ancestor, this process leads

Introduction Human evolution, the method with the aid of using which people evolved on Earth from now-extinct primates. Viewed zoologically, we human beings are Homo sapiens, a culture-bearing upright-taking walks species that live at the ground and possibly first developed in Africa approximately 315,000 years ago. We at the moment are the most effective dwelling

When it comes to structural evolution, there are two sorts of structures that have developed in different species as a result of their derivation from prior animals: homologous and analogous structures. Structures that are homologous to one another evolve during species’ divergent evolution, whereas structures that are similar to one another evolve during species’ convergent

Gene flow and genetic drift are two processes among three different necessary processes required for the evolution of species. Both terms are different, however, they are interconnected too. Gene flow focuses on migrating the genes from one gene pool to another pool, while genetic drift depends on the allelic frequencies, an alternative form of genes. 

Molecular similarities support the shared common ancestry of life. Comparing the DNA sequences makes it possible to reveal how closely any two species are related. Whereas biogeography, or the study of organisms’ geographic distribution, can disclose information about how and when species evolved. Homologous structures suggest comparable selected pressures can produce similar adaptations, whereas analogous

The time when Charles Darwin and Alfred Russel Wallace first came up with the theory of evolution has updated itself a bit. Much more data has been discovered and picked up over the years that have solely helped to reinforce and sharpen the concept that species modification over time. The modern synthesis of the principle of evolution combines numerous exceptional

The modern synthetic theory of evolution defines  the evolution in terms of genetic variations in a population which leads to the formation of new species. Darwin’s book, The Origin of Species by Means of Natural Selection, has found a great impact on evolutionary theories that favours the idea that all the living organisms are descended from

Microevolution is the gradual shift in allele frequencies within a population over time. This change occurs as a result of four distinct processes: mutation, natural and artificial selection, gene flow, and genetic drift. This change occurs over a relatively short period of time (in evolutionary terms) in comparison to the changes referred to as macroevolution.

Mutation, a drive of evolution, may be a random modification in an organism’s genetic makeup that influences the population’s cistron pool. It is a modification within the nature of the DNA in one or a lot of chromosomes. Mutations bring about new alleles; thus, they’re a supply of genetic variation during a population. Recombination is