AP BIOLOGY

HEREDITY

MULTIPLE ALLELES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A single gene has 3 or more alleles. These are called
A
multiple genes
B
multiple alleles
C
codominance
D
polygenic traits
Explanation: 

Detailed explanation-1: -When a trait has three or more distinct alleles, we refer to it as having multiple alleles inheritance. The human ABO blood type alleles/trait is an example of a trait with multiple alleles.

Detailed explanation-2: -Traits controlled by a single gene with more than two alleles are called multiple allele traits. An example is ABO blood type. Your blood type refers to which of certain proteins called antigens are found on your red blood cells.

Detailed explanation-3: -multiple allele. noun. : an allele of a genetic locus having more than two allelic forms within a population.

Detailed explanation-4: -Although individual humans (and all diploid organisms) can only have two alleles for a given gene, multiple alleles may exist at the population level such that many combinations of two alleles are observed.

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