Question

Which statement explains the difference between multiple alleles and polygenic inheritance
Multiple allele means more than one gene contributes to the phenotype and polygenic inheritance means more than two forms of the same gene in the population.
Multiple allele means more than two forms of the same gene in the population and polygenic inheritance means more than one gene contributes to the phenotype of a trait.
Multiple allele means more than two forms of different genes in the population and polygenic inheritance means one gene contributes to many phenotypic characters.

Answer 1

Alleles refer to different versions of the same gene. So a single gene can have multiple alleles. For example in fruit flies there is a single gene that controls eye color, and the eye color of the fly depends on the alleles they have for that gene (since they have two copies of every gene, being diploid).

A polygenic trait refers to any inheritable trait that is controlled by multiple genes, and each of these genes can have multiple alleles. For example, eye color in humans is a polygenic trait. There are at least three different genes, each with multiple alleles, that determine eye color in humans. Polygenic traits don't follow patterns of mendelian inheritance.

So in summation the difference is multiple alleles refers to different versions of one gene and polygenic traits refers to a single trait which is controlled by multiple genes (each with multiple alleles)

Yes, or:


Multiple alleles are "the existence of more than two alleles (versions of the gene) for a genetic traits.
Polygenic traits are "[characteristics of organisms that are] influenced by several genes."

So multiple alleles are more than two alleles for one trait, and polygenic traits are one trait that is influenced by mulitple genes.

This information came from my biology textbook, "Biology: Principles and Explorations" by Holt, Rinehart, and Winston.

Answer 2

so it is A

Answer 3

I say it is

Answer 4

lol

Answer 5

ok

Answer 6

Multiple alleles are different versions of the same gene (for example, blood type in humans is controlled by different alleles, A, B and O of the same gene); polygenic inheritance occurs when one trait or characteristic is controlled by more than one gene (for example, eye color in human is controlled by between 10 and 14 different genes, depending on which study you read). So it would be B. Multiple allele means more than two forms of the same gene in the population and polygenic inheritance means more than one gene contributes to the phenotype of a trait.

Answer 7

This one is B