variation. / (ˌvɛərɪˈeɪʃən) / noun. the act, process, condition, or result of changing or varying; diversity. an instance of varying or the amount, rate, or degree of such change.
What is an variation in biology?
Biological variation or variance can be defined as the appearance of differences in the magnitude of response among individuals in the same population given the same dose of a compound.
What is a simple definition of variation?
: the act or process of varying : the state or fact of being varied. : an instance of varying. : the extent to which or the range in which a thing varies.
What is variation in biology examples?
Genetic variation results in different forms, or alleles?, of genes. For example, if we look at eye colour, people with blue eyes have one allele of the gene for eye colour, whereas people with brown eyes will have a different allele of the gene.
Why is variation in biology important?
Genetic variation in a group of organisms enables some organisms to survive better than others in the environment in which they live. Organisms of even a small population can differ strikingly in terms of how well suited they are for life in a certain environment.
What is variation and its importance?
Complete answer: Variations refer to the changes that are seen in the case of the genetic makeup of an organism. Variations in organisms arise due to the sexual reproduction and ensure the natural selection of the individual and in turn make the organism better adapted to the environment.
What causes variation?
Major causes of variation include mutations, gene flow, and sexual reproduction. DNA mutation causes genetic variation by altering the genes of individuals in a population. Gene flow leads to genetic variation as new individuals with different gene combinations migrate into a population.
What are the 4 types of variation?
Examples of types of variation include direct, inverse, joint, and combined variation. What Is Direct Variation?
What is variation and evolution?
Variation is the difference in the characteristics of individuals in a population. They occur due to recombination and mutation, whereas evolution is the gradual process of change in inheritable characteristics of a population over several generations. Evolution occurs through natural selection.
What are the 2 types of variation?
There are two forms of variation: continuous and discontinuous variation.
Who discovered variation?
In the mid-1700s, Pierre Louis Maupertuis, a French scholar now known primarily for his work in mathematics and physics, posited that while species have a true, original form, accidents during the development of nascent offspring could introduce variations that could accumulate over time.
What are the five importance of variation?
The significance of variation can be stated as follows: 1) Variation enables organisms to adjust and adapt better according to the changing conditions of the environment. 2) Different kinds of variations in organisms lead to the development of new species that are a better fit for the harsh environmental conditions.
What is the role of variation in evolution?
Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection).
What are variations explain with a suitable example?
Variation can be defined as the differences among individuals within the same species which develops due to the mixing and assortment of genes of the parents that is passed onto the offspring’s. For example, we keep pets like dogs and cats.
What is the advantage of variation?
Answer: (a) The increase in the chances of the species’ survival in a changing environment is the advantage of variation to a species.
What are 3 sources of genetic variation?
The genetic diversity has three different sources: mutation, recombination and immigration of genes. Mutation is the driving force of genetic variation and evolution.
What is the formula of variation?
A variation is a relation between a set of values of one variable and a set of values of other variables. In the equation y = mx + b, if m is a nonzero constant and b = 0, then you have the function y = mx (often written y = kx), which is called a direct variation.
How do you do variation?
- Write the variation equation: y = kx or k = y/x.
- Substitute in for the given values and find the value of k.
- Rewrite the variation equation: y = kx with the known value of k.
- Substitute the remaining values and find the unknown.
What is the definition of natural variation?
Definition. Natural variation in plants refers to the genetic diversity of a single plant species in the wild. Natural variation is a valuable source of beneficial traits for plant breeding.
How many types of variations are there in biology?
Variations can be categorised into two types: Genotypic variations are caused due to changes in the chromosome or genes or due to various alleles of the same gene. They are inheritable variations. These are caused due to mutation, recombination, etc.
What is variation within a species?
Variation is the difference between individuals from the same species. This variation can be inherited from one generation to the next. The individuals that are better suited (adapted) to their environment will survive to reproduce. This is called natural selection.
What is variation in human?
Human variability, or human variation, is the range of possible values for any characteristic, physical or mental, of human beings.
What is a variation of a gene called?
Genetic variations are the differences in DNA segments or genes between individuals and each variation of a gene is called an allele. For example, a population with many different alleles at a single chromosome locus has a high amount of genetic variation.
What is the most important type of variation?
Although mutation is the only way of producing new variants of single genes, recombination, brought about through sexual reproduction, produces more new types of individuals much faster than mutation. In eukaryotic organisms, therefore, recombination is the greatest source of variation.
Is variation important for species?
Variation is important for the evolution of the species. Variations are beneficial to the species than individuals because sometimes, survival will be difficult for a species under certain environmental conditions.