What is a polygenic trait?

1. What is an example of a polygenic trait?
2. What is a polygenic trait List 3 examples?
3. How do you identify a polygenic trait?
4. What is a polygenic trait quizlet?
5. What causes variations in traits like hair color eye color and height?
6. Is hair color a polygenic trait?
7. Is gender a polygenic trait?
8. Are Freckles a polygenic trait?
9. Is height a polygenic trait?
10. What is the difference between a polygenic trait and a multifactorial trait?
11. Are traits polygenic or single?
12. What are chromosomes 1 through 22 in humans called?
13. What is an example of polygenic inheritance quizlet?
14. How is polygenic inheritance defined?
15. Which of the following is an example of environmental impacts on the expression of traits?

What is an example of a polygenic trait?

A polygenic trait is a characteristic, sometimes we call them phenotypes, that are affected by many, many different genes. A classic example of this would be height. Height in humans is very strongly genetically controlled, but there are many, many different genes that control height.

What is a polygenic trait List 3 examples?

In humans, height, skin color, hair color, and eye color are examples of polygenic traits.

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.

What is a polygenic trait quizlet?

polygenic triats. a trait that is controlled by several pairs of genes; different combinations of all the genes contribute to the trait in varying degrees. multiple allele traits.

What causes variations in traits like hair color eye color and height?

D is correct. Melanin is one of many substances that influence the color of human skin, eyes, and hair. The different forms of melanin are partially responsible for the variation in these traits.

Is hair color a polygenic trait?

Human skin, hair, and eye color are also polygenic traits because they are influenced by more than one allele at different loci.

Is gender a polygenic trait?

Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on the X-chromosome and some on the Y-chromosome.

Are Freckles a polygenic trait?

Traits with polygenic determinism correspond to the classical quantitative characters, as opposed to the qualitative characters with monogenic or oligogenic determinism. In essence instead of two options, such as freckles or no freckles, there are many variations, like the color of skin, hair, or even eyes.

Is height a polygenic trait?

Because height is determined by multiple gene variants (an inheritance pattern called polygenic inheritance), it is difficult to accurately predict how tall a child will be.

What is the difference between a polygenic trait and a multifactorial trait?

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.

Are traits polygenic or single?

Do polygenic traits or single-gene traits have more variation in the phenotypes they produce? Explain. Polygenic traits have more than one gene that controls the trait. A polygenic trait controlled by just two genes would have at least four possible phenotypes, whereas a single-gene trait can have two phenotypes.

What are chromosomes 1 through 22 in humans called?

For example, humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes called autosomes, 1 through 22, and one pair of sex chromosomes, X and Y.

What is an example of polygenic inheritance quizlet?

An example of polygenic inheritance in humans is skin color. The skin color is controlled by 1, 3, & 4 genes. You can tell that it is polygenic in a population by the people having different types of skin color.

How is polygenic inheritance defined?

Polygenic inheritance refers to the kind of inheritance in which the trait is produced from the cumulative effects of many genes in contrast to monogenic inheritance in which the trait results from the expression of one gene (or one gene pair).

Which of the following is an example of environmental impacts on the expression of traits?

Which of the following is an example of environmental impacts on the expression of traits? Animal coat color shifts in response to seasonal changes in day length and temperature.