Is blood type A discrete trait?

A character controlled by only a few genes is known as an oligogenic, or qualitative, character; oligogenic characters demonstrate discontinuous variation (in which traits are discrete; e.g., blood type is either AB, A, B, or O).

Is blood type A discrete or continuous variable?

Blood type is not a discrete random variable because it is categorical. Continuous random variables have numeric values that can be any number in an interval.

What are examples of discrete traits?

Discrete traits, which are not common in humans, include widow's peak and cleft chin. Certain medical conditions are also discrete, such as cystic fibrosis and Huntington's disease.

Is blood type A quantitative trait?

Since the ABO part of your bloodtype fits neatly into four categories, it is a qualitative trait.

What is a discrete trait in humans?

Page 1. Discrete or discontinuous traits: traits occur in distinct. Categories: Trait is there or it is not (examples: albinism, cystic fibrosis, Huntington's disease) Mendelian inheritance, single genes, dominance, recessiveness.

What Your Blood Type Says About Your Personality

Is blood group A continuous trait?

Human blood groups are an example of discontinuous variation. In the ABO blood group system, only four blood groups are possible - A, B, AB or O. You cannot have a blood group in between these four groups, so this is discontinuous variation.

Is blood type A Mendelian trait?

Blood groups are hereditary. They have a Mendelian pattern, in other words, they are the product of a single gene. The ABO gene has three types of alleles: A, B, and O. The first two, A and B, are codominant, in other words, they dominate equally.

Is blood type nominal or ordinal?

You can code nominal variables with numbers if you want, but the order is arbitrary and any calculations, such as computing a mean, median, or standard deviation, would be meaningless. Examples of nominal variables include: genotype, blood type, zip code, gender, race, eye color, political party.

What is an example of a quantitative trait?

A quantitative trait is a measurable phenotype that depends on the cumulative actions of many genes and the environment. These traits can vary among individuals, over a range, to produce a continuous distribution of phenotypes. Examples include height, weight and blood pressure.

What are the quantitative and qualitative traits?

Qualitative traits are frequently controlled by one or just a few genes meaning they are simply-inherited traits. Conversely, quantitive traits are traits with phenotypes that can be measured numerically. These are traits like weaning weight and dry matter intake.

Is blood pressure discrete or continuous?

Is blood pressure an example of continuous or discrete data? Blood pressure is an example of continuous data. Blood pressure can be measured to as many decimals as the measuring instrument allows.

Is eye color a discrete trait?

Genetic determination of eye color

It was originally thought that eye color was a simple Mendelian trait, meaning it was determined by a single gene, with brown being dominant and blue recessive. It is now clear that eye color is a polygenic trait, meaning it is determined by multiple genes.

What are discrete genes?

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. Discrete variation in a group of individuals can be shown using a bar chart.

What type of variable is blood type?

Categorical variable: a variable can only have one value from a limited range of values. For example, blood group and gender are forms of categorical data.

Which of the following is discrete variable?

The answer is the gender of each student in a psychology class is an example of a discrete variable.

What is an example of a discrete random variable?

If a random variable can take only a finite number of distinct values, then it must be discrete. Examples of discrete random variables include the number of children in a family, the Friday night attendance at a cinema, the number of patients in a doctor's surgery, the number of defective light bulbs in a box of ten.

What are discrete and quantitative characters?

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.

Is skin color a qualitative trait?

Abstract. Skin color is a polygenically determined quantitative trait. Although it has been used extensively in studies of between-population variation, there have been relatively few studies of the inheritance of skin color.

What is a continuous trait?

A continuous trait displays a range of expression (such as weight, height, etc.) rather than an all-or-none appearance (such as white or red). Continuous traits are usually under polygenic control and subject to substantial environmental influence in expression. polygenes, QTL, continuous variation.

Is nominal discrete or continuous?

Categorical and Continuous Variables. Categorical variables are also known as discrete or qualitative variables. Categorical variables can be further categorized as either nominal, ordinal or dichotomous. Nominal variables are variables that have two or more categories, but which do not have an intrinsic order.

Is blood pressure ordinal or interval?

Most physical measures, such as height, weight, systolic blood pressure, distance etc., are interval or ratio scales, so they fall into the general "continuous " category.

Is heart rate discrete or continuous?

Variables such as heart rate, platelet count and respiration rate are in fact discrete yet are considered continuous because of large number of possible values. Only those variables which can take a small number of values, say, less than 10, are generally considered discrete.

Is blood type genetic?

Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive.

What is an example of a non Mendelian trait?

Non-Mendelian traits are traits that are not passed down with dominant and recessive alleles from one gene. Polygenic traits are considered non-Mendelian because their alleles are located on more than one gene which allows for more alleles and phenotypes. Examples of polygenic traits are hair color and height.

Is blood type polygenic inheritance?

Polygenic traits include such features as eye color, hair color, skin color, and blood type.