Multiple Choice
Which of the following statements about a person's phenotype is correct?
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13. Mendelian Genetics
Genotype vs. Phenotype
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In the context of a mouse with a black fur phenotype, which of the following represents a possible genotype?
A
BB
B
bb
C
Bb
D
bB
Verified step by step guidance1
Understand that fur color in mice is determined by alleles, where 'B' represents the dominant allele for black fur and 'b' represents the recessive allele for another fur color.
Recognize that a phenotype, such as black fur, is the observable trait, while the genotype is the genetic makeup that leads to this phenotype.
Since black fur is dominant, any genotype containing at least one 'B' allele will result in a black fur phenotype.
Identify the possible genotypes for a black fur phenotype: 'BB' (homozygous dominant) and 'Bb' or 'bB' (heterozygous).
Conclude that the genotypes 'BB', 'Bb', and 'bB' can all result in a black fur phenotype in mice.
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