Continuous variation is usually polygenic and involves multiple genes. Where you can think of a choice of discrete types, but not of a meaningful compromise or gradation between those types, that’s discontinuous variation. So,
length of fingers varies continuously
, but number of fingers varies only discontinuously.
IS fingerprint physiological variation?
option c is very correct, size, colour and fingerprints, are all examples of
morphological variation
. … physiological variation deals with how the body functions.
What causes 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. … Continuous variation is the combined effect of many genes (known as polygenic inheritance) and is often significantly affected by environmental influences.
What is example of discontinuous variation?
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 is the definition of discontinuous variation?
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. There are no values in between, so this is discontinuous variation. …
What can result in physiological variation?
Different from the classical texts in physiology, its emphasis is on variations in physiology during exposure to environmental changes, such
as pressure, temperature, altitude, time, and gravity
; physiological adaptations during pregnancy, fetal and neonatal life, old age, exercise, and exposure to artificial …
What are the examples of physiological variation?
Examples of physiological variation in osmotic adaptation, in different populations of the same species, are given for
species of Paramecium, Euplotes, Asterias, Gammarus, Callinectes, Anopheles, Onchorhynchus and Gasterosteus
.
How do you know if a graph is continuous or discontinuous?
A function being continuous at a point means that
the two-sided limit at that point exists and is equal to the function’s value
. Point/removable discontinuity is when the two-sided limit exists, but isn’t equal to the function’s value.
Is foot size continuous or discontinuous?
4) Shoe size is an example of discontinuous variation whereas
foot length is continuous variation
.
How do you distinguish between 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 another name for discontinuous variation?
classification of variation
A discontinuous variation with several classes, none of which is very small, is known as a
polymorphic variation
.
Is Skin Colour continuous or discontinuous variation?
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 are the 2 types of variation?
If you consider almost any characteristic, you will find differences between various people (or other animals or plants) in a population. There are two forms of variation:
continuous and discontinuous variation
.
What is continuous and discontinuous traits?
Quantitative traits are also called continuous traits, and they stand in contrast to qualitative, or discontinuous, traits that
are expressed in the form of distinct phenotypes chosen from a discrete set
. Continuous variation in the expression of a trait can be due to both genetic and non-genetic factors.
What are the 3 types of variation?
For a given population, there are three sources of variation:
mutation, recombination, and immigration of genes
.
Why is eye Colour an example of discontinuous variation?
A characteristic of any species with only a limited number of possible values
shows discontinuous variation. For example: eye colour.
