Difference Between Multifactorial and Polygenic Traits

The terms of polygenic and multifactorial inheritance are sometimes used interchangeably. However, in the strict sense, polygenic refers to the sum total of many genes, whereas multifactorial also includes the interaction of environmental and genetic determinants.

1. How are polygenic and multifactorial traits different quizlet?
2. What is a multifactorial trait?
3. What are examples of polygenic traits?
4. What does it mean for a trait to be both polygenic and multifactorial quizlet?
5. Which of the following is a polygenic trait in humans?
6. What is the difference between genotype and phenotype?
7. What are some multifactorial disorders?
8. Is skin color a polygenic trait?
9. Is Cystic Fibrosis a polygenic trait?
10. How do you identify a polygenic trait?
11. Is intelligence a polygenic trait?
12. Is blood type A polygenic trait?

How are polygenic and multifactorial traits different quizlet?

Polygenic traits show a continuous range of phenotypic variation, whereas multifactorial traits show several distinct phenotypes. Polygenic traits are genetically based, whereas multifactorial traits have both genetic and environmental influences.

What is a multifactorial trait?

What is multifactorial inheritance? Multifactorial inheritance is when more than one factor causes a trait or health problem, such as a birth defect or chronic illness. The main factor is genes. But the cause includes other factors that aren't genes, such as: Nutrition.

What are examples of polygenic traits?

Because multiple genes are involved, polygenic traits do not follow Mendel's pattern of inheritance. Instead of being measured discretely, they are often represented as a range of continuous variation. Some examples of polygenic traits are height, skin color, eye color, and hair color.

What does it mean for a trait to be both polygenic and multifactorial quizlet?

polygenic. A trait can be described as either single-gene (Mendelian or monogenic) or polygenic. As its name implies, a polygenic trait reflects the activities of more than one gene. multifactorial. 1) Both single-gene and polygenic traits can also be multifactorial, which means they are influenced by the environment.

Which of the following is a polygenic trait in humans?

Polygenic inheritance occurs when one characteristic is controlled by two or more genes. Often the genes are large in quantity but small in effect. Examples of human polygenic inheritance are height, skin color, eye color and weight. Polygenes exist in other organisms, as well.

What is the difference between genotype and phenotype?

A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics. For example, having blue eyes (an autosomal recessive trait) is a phenotype; lacking the gene for brown eyes is a genotype.

What are some multifactorial disorders?

Some common multifactorial disorders include schizophrenia, diabetes, asthma, depression, high blood pressure, Alzheimer's, obesity, epilepsy, heart diseases, Hypothyroidism, club foot and even dandruff.

Is skin color a polygenic trait?

A polygenic trait is one whose phenotype is influenced by more than one gene. Traits that display a continuous distribution, such as height or skin color, are polygenic.

Is Cystic Fibrosis a polygenic trait?

These diseases have been categorized as "oligogenic" rather than "polygenic," because they involve only a relatively small number of genes. For example, cystic fibrosis is typically characterized as a single-gene disease associated with recessive mutations in the CFTR gene.

How do you identify a polygenic trait?

Usually, traits are polygenic when there is wide variation in the trait. For example, humans can be many different sizes. Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall.

Is intelligence a polygenic trait?

Intelligence Is a Polygenic Trait

These findings show that intelligence is a highly polygenic trait where many different genes would exert extremely small, if any, influence, most probably at different stages of development.

Is blood type A polygenic trait?

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