AP BIOLOGY

HEREDITY

CODOMINANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A fish with red scales (RR) and a fish with blue scales (BB) creates a fish with a combination of both red and blue scales. What pattern of inheritance is this?
A
Incomplete Dominance
B
Nondominance
C
Co-Dominance
D
Dominance & Recessiveness
Explanation: 

Detailed explanation-1: -When a fish has the genotype B R, it has a patchwork of blue and red scales.

Detailed explanation-2: -This pattern of inheritance is described as incomplete dominance, meaning that neither of the alleles is completely dominant over the other: both alleles can be seen at the same time. The allele for red flowers is incompletely dominant over the allele for white flowers. Red + white = pink.

Detailed explanation-3: -Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes.

Detailed explanation-4: -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.

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