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Is human skin colour continuous or discontinuous variation?
Natural eye colour is discontinuous. :) !
Is horse skin colour continuous or discontinuous variation?
Horse skin color represents discontinuous variation because it is determined by specific genetic factors, resulting in distinct categories or phenotypes, such as bay, chestnut, black, and gray. These color variations do not blend into each other but instead fall into separate, recognizable groups. While there may be some variation within these categories, the overall classification remains discrete.
Why horse skin colour is discontinuous variation?
Horse skin color exhibits discontinuous variation because it is influenced by specific genetic factors that produce distinct phenotypes, such as bay, chestnut, or black. Unlike traits that show continuous variation, such as height, horse colors do not blend gradually but instead appear as separate categories. This is due to the presence of dominant and recessive alleles that determine these color traits, leading to clearly defined groups rather than a smooth gradient of colors.
What is the variation in human skin color an example of?
This is a typical kind of continuous variation which is controlled by polygenes.
What is a result of polygenic inheritance?
Polygenic inheritance results in traits that are controlled by multiple genes, leading to a wide range of possible phenotypes within a population. This can contribute to continuous variation in traits such as height, skin color, and intelligence.
ARE Human blood groups are an example of a trait that shows continuous variation.?
No, human blood groups are not an example of a trait that shows continuous variation. Instead, blood groups (such as A, B, AB, and O) are classified as discrete categories determined by specific alleles. Continuous variation typically refers to traits like height or skin color, which exhibit a range of phenotypes rather than distinct categories.
What can influence variation?
Two factors that can affect variation are: (1) climate (on the colour of the skin, for example); (2) diet (a deficiency of some mineral can cause poor growth for one who has tallness in their genes)
What factors can influence variation?
Two factors that can affect variation are: (1) climate (on the colour of the skin, for example); (2) diet (a deficiency of some mineral can cause poor growth for one who has tallness in their genes)
Why skin colour is discontinuous variation?
Skin color is considered a discontinuous variation because it is influenced by a limited number of genetic factors that produce distinct, observable categories rather than a smooth gradient. These genetic variations primarily involve the amount and type of melanin produced, leading to specific skin tones that can be grouped into discrete categories, such as light, medium, and dark. Additionally, environmental factors, such as sun exposure, can further contribute to these distinct categories. Overall, this results in a clear delineation of skin color types rather than a continuous spectrum.
What does enviromental variation mean?
enviromental variation means what impact the enviroment has on the way you look for example if you have darker skin then many people it could be due to the heat of where you was brought up in, or the colour of your hair as the sun has shone on it, hope this helps:)
What is is a polygenetic trait?
A polygenetic trait is a characteristic that is influenced by multiple genes, each contributing a small amount to the overall phenotype. These traits often show a wide range of variation in a population and are not simply controlled by a single gene. Examples include height, skin color, and intelligence.
Why do dun horses have a black stripe down its back?
Because a horse's skin is either black, grey o r chestnut, that depends on the horse colour, so the horse colour is going to be a mix between them or one of them.
