What is continuous and discontinuous variation?

What is continuous and discontinuous variation?

In other words, continuous variation is where the different types of variations are distributed on a continuum, while discontinuous variation is where the different types of variations are placed into discrete, individual categories. Examples of continuous variation include things like a person’s height and weight.

What is discontinuous variation genetics?

In discontinuous variation, a character is found in a population in two or more distinct and separate forms called phenotypes. Such alternative phenotypes are often found to be encoded by the alleles of one gene. A good example is albinism in humans, which concerns phenotypes of the character of skin pigmentation.

What discontinuous variation means?

biology. : abrupt variation in which there are few or no intermediate forms.

What is discontinuous variation Igcse biology?

Discontinuous Variation is when there are distinct differences for a characteristic. For example, people are either blood group A, B, AB or O; are either male or female; can either roll their tongue or not – there are no ‘inbetweens’

Is eye Colour continuous or discontinuous?

Is eye color a discontinuous trait? And clearly hair color, skin color and eye color all fall under the definition of a continuous trait, because even though they dont seem to be affected by the environment, they are definitely polygenic traits and show a gradation, so they’re definitely continuous traits.

What is discontinuous variation caused by?

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. In continuous variation there is a complete range of measurements from one extreme to the other.

Is Skin Colour continuous or discontinuous?

And clearly hair color, skin color and eye color all fall under the definition of a continuous trait, because even though they dont seem to be affected by the environment, they are definitely polygenic traits and show a gradation, so they’re definitely continuous traits.

What causes continuous and discontinuous variation in an organism?

This can be caused by inherited or environmental factors. Variation can be continuous or discontinuous. Continuous and discontinuous variation. Some of the features of the different organisms in a species show continuous variation, and some features show discontinuous variation.

Which is a discontinuous variation in a blood group?

In human blood group system, only four blood groups are possible (A, B, AB, and O). Since no intermediate values are present for the human ABO blood group system, it is considered as a discontinuous variation. Discontinuous variations are decided by a single gene or a small number of genes.

Which is the best definition of continuous variation?

What is Continuous Variation? In continuous variation, a series of successive changes of a particular characteristic in a population is demonstrated from one extreme to the other without a break. Different characteristics of a population might show continuous variation.

What causes variation in features of a species?

Variation is the differences between individuals within a species. This can be caused by inherited or environmental factors. Variation can be continuous or discontinuous. Some of the features of the different organisms in a species show continuous variation, and some features show discontinuous variation.