What is meant by discrete and continuous variation?

If a characteristic can change gradually, it is continuous. 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.

Is human variation discrete?

Instead, the variation is gradual and continuous. And about 30 years after Huxley proposed the term clines, anthropologists came to recognize that pretty much all variation in the human species is clinal – that is to say, continuous and gradual across geography, and not discrete, not racial.

What is the definition of continuous variation?

For any species a characteristic that changes gradually over a range of values shows continuous variation.

What are the 3 types of variation?

Organisms show:

• Genetic variation – the variation in genotypes (i.e. the genes) between species or within a species.
• Phenotypic variation – the variation in phenotypes other features apart from the genes) between species or within a species e.g. variation in height, mass, shape, colour, blood type.

What’s the difference between discrete and continuous data?

Discrete data is information that can only take certain values. This type of data is often represented using tally charts, bar charts or pie charts. Continuous data is data that can take any value. Height, weight, temperature and length are all examples of continuous data.

What are discrete characteristics?

Discrete, or discontinuous, traits are controlled by a small number of genes, often only one. These genes generally have two alleles. For instance, Mendel’s pea seeds had two alleles for shape: smooth or wrinkled. An example of human alleles is seen with freckles; each person has a freckled or non-freckled allele.

What does discrete mean in biology?

discontinuous
Discrete, or discontinuous, traits are controlled by a small number of genes, often only one. These genes generally have two alleles. For instance, Mendel’s pea seeds had two alleles for shape: smooth or wrinkled. An organism’s observable characteristics — such as seed shape or spotting — is its phenotype.

What is an example of discrete variation?

Discrete variation is either/or and is often caused by the presence or absence of a small number if genes. For example, our ability to “roll” our tongues is determined by just one gene. We can all either roll our tongue or not – there’s nothing in between.

Is weight discontinuous variation?

Examples. Weight, height, and length of organisms are examples of continuous variation while the color of petals, blood groups of animals, the gender of animals, etc. are examples of discontinuous variation.

What is intrinsic variation?

Intrinsic variability (or intrinsic stochasticity) is a relatively well understood aspect of biological models. It arises from the probabilistic nature of the timing of collision events between reacting biological molecules, and its effect is most pronounced when the number of molecules in the system is small.

What is discrete data?

Discrete data is a count that involves integers — only a limited number of values is possible. This type of data cannot be subdivided into different parts. Discrete data includes discrete variables that are finite, numeric, countable, and non-negative integers.

What is meant by discrete variation?

Discrete variation Characteristics controlled by a single gene (one copy inherited from each parent) tend to have phenotypes that fall into separate categories. They show discrete variation….

What is the definition of a discrete variable?

discrete variable. A type of variable, also called a categorical or nominal variable, which has a finite number of possible values that do not have an inherent order.

What is discrete variable and continuous variable?

A continuous variable is a variable whose value is obtained by measuring. A random variable is a variable whose value is a numerical outcome of a random phenomenon. A discrete random variable X has a countable number of possible values. Example: Let X represent the sum of two dice.

Is date a discrete or continuous variable?

A continuous variable can be numeric or date/time. For example, the length of a part or the date and time a payment is received. If you have a discrete variable and you want to include it in a Regression or ANOVA model, you can decide whether to treat it as a continuous predictor (covariate)…