AP BIOLOGY

HEREDITY

CODOMINANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is it called when both traits are expressed and neither allele is dominant?
A
Incomplete Dominance
B
Codominance
C
Pedigree
D
Heterozygous
Explanation: 

Detailed explanation-1: -Codominance. As opposed to partial dominance, codominance occurs when the phenotypes of both parents are simultaneously expressed in the same offspring organism.

Detailed explanation-2: -Codominance Codominance, as it relates to genetics, refers to a type of inheritance in which two versions (alleles) of the same gene are expressed separately to yield different traits in an individual.

Detailed explanation-3: -Codominance Definition Codominance is a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully expressed. As a result, the phenotype of the offspring is a combination of the phenotype of the parents. Thus, the trait is neither dominant nor recessive.

Detailed explanation-4: -Incomplete dominance occurs because neither of the two alleles is completely dominant over the other. This results in a phenotype that is a combination of both.

Detailed explanation-5: -Incomplete dominance occurs when neither trait is truly dominant over the other. This means that both traits can be expressed in the same regions, resulting a blending of two phenotypes. If a white and black dog produce a gray offspring, this is an example of incomplete dominance.

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