What are the characteristics of discontinuous variation?
discontinuous variation (qualitative variation) Clearly defined differences in a characteristic that can be observed in a population. Characteristics that are determined by different alleles at a single locus show discontinuous variation, e.g. garden peas are either wrinkled or smooth.
What are examples of discontinuous variation?
Examples of discontinuous variation include a person’s blood group or the color of a species of bird. These variations can exist for two major reasons. They could be purely random genetic changes, or they can be traits that have been influenced and selected by the environment.
What are the examples of continuous and discontinuous variation?
Examples of continuous variation include height, weight, heart rate, finger length, leaf length, etc. Examples of discontinuous variation include tongue rolling, finger prints, eye colour, and blood groups. Continuous variation fluctuates around an average or a mean of species.
Is eye colour continuous or discontinuous?
Discontinuous: Eye colour, handedness & lobed/lobeless ears. Continuous: Hand span, arm length & height. Discontinuous data can be plotted on a bar chart. For example, a person can only have one of four blood groups – A, B, AB or O.
Are characteristics that show discontinuous variation driven by genes?
Characteristics showing discontinuous variation fall into a few very distinct classes. The ability to roll the tongue, and blood groups, are examples of discontinuous variation. These characteristics can be explained much more easily by simple rules of genetics and are less likely to be affected by other factors.
What is discontinuous variation?
noun Biology. variation in phenotypic traits in which types are grouped into discrete categories with few or no intermediate phenotypes. Compare continuous variation.
What is a discontinuous variable in science?
a variable that has distinct, discrete values but no precise numerical flow. Also called discrete variable. …
What’s discontinuous variation?
Definition of discontinuous variation biology. : abrupt variation in which there are few or no intermediate forms.
Is earlobe shape continuous or discontinuous?
Here, when you organize your ear cards into a continuous spectrum, you’re describing earlobe shape as a continuous trait, ranging from free to attached. Scientists usually consider continuous traits to be complex traits.
Why is tongue discontinuous variation?
The ability to roll the tongue, and blood groups, are examples of discontinuous variation. These characteristics can be explained much more easily by simple rules of genetics and are less likely to be affected by other factors.
Which inherited characteristics are discontinuous?
A characteristic of any species with only a limited number of possible values shows discontinuous variation . Human blood group is an example of discontinuous variation. In the ABO blood group system, only four blood groups are possible (A, B, AB or O).
Is intelligence discontinuous variation?
The nature of intelligence is composite and complex, and its expression is dependent upon a combination of environmental effects and the products of a great number of genes. …
What is the difference between continuous and discontinuous traits?
These type of phenotypes are called discontinuous traits. Other traits do not fall into discrete classes. These types of traits are called continuous traits and cannot be analyzed in the same manner as discontinuous traits. Find out everything you need to know about it here. Simply so, what are continuous traits?
What is an example of discontinuous variation?
discontinuous variation (qualitative variation) Clearly defined differences in a characteristic that can be observed in a population. Characteristics that are determined by different alleles at a single locus show discontinuous variation, e.g. garden peas are either wrinkled or smooth.
What are the properties of discontinuous functions?
There are some properties that are specific to discontinuous functions, and two are particularly important: First, the function always breaks off at a certain point or multiple points. As we have already discussed, discontinuous functions have points where the graph just stops and picks up somewhere else.
How does the environment affect discontinuous variation?
Discontinuous variation is controlled by alleles of a single gene or a small number of genes. The environment has little effect on this type of variation.