Respuesta :
Answer is Option "A"
Explanation:
- Genetic variation is the variation in alleles and genes, both within and among populations. Think of a population as a family unit. Within your family of closely-related individuals there is genetic variation. Within a neighbourhood, there are many families, and so there is also genetic variation among that larger group
- Genetic variation can be identified through either continuous or discrete traits. Continuous traits are traits that vary continuously, such as height and weight. Discrete traits are traits that can only be measured discretely, such as tongue rolling; you either can or can't do this
- There are three sources of genetic variation: mutation, gene flow, and sexual reproduction.A mutation is simply a change in the DNA. Mutations themselves are not very common and are usually harmful to a population.Because of this, mutations are usually selected against through evolutionary processes
- Hence, the right answer is option A "genetic variation among individuals"
The gradual change in the population is known as evolution. The factors which are responsible for the evolution is as follows:-
- Natural selection
- Variation
- Reproduction.
The process of adjustment or adaptation in nature according to the nature for surviving is called natural selection.
According to the question, the correct option is A that is genetic variation among individuals because genetic variation is one of the parts which is essential for evolution. Each species has different genes and the mixing of these genes leads to the formation of a new character.
For more information, refer to the link:-
https://brainly.com/question/25026730
