Explain the evolution process

 

Asked by jevesatish | 26th Jul, 2018, 07:52: PM

Expert Answer:

  • Evolution is a very slow and gradual process that results in the generation of highly evolved and advanced species over a period of about thousands of years.
  • Evolution occurs as a result of several processes such as mutation, natural selection, genetic drift etc. Each of these processes is a result of several other processes.
  • Mutations in genetic code occur naturally leading to different alleles in genes. This leads to variation within a species.
  • Variation provides some individuals with traits which mean they are more capable of surviving in their specific environment, this is known as a selective advantage. Those with the selective advantage are more likely to survive and reproduce than those without it.
  • This means that more offspring will be born with the advantageous allele and will out-compete those without it. 
  • Over thousands of years, this process will continue and gradually alter the traits of a species in order to make them more able to survive in their environment.

Answered by Sheetal Kolte | 27th Jul, 2018, 11:23: AM