From your research, you discover that in this species of fish, the allele for black color is dominant to orange color. Based on this research, can you determine the genotype of a black fish just by looking at it? Why or why not?

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter19: Population Genetics And Human Evolution
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Problem 20QP: Natural Selection Affects the Frequency of Genetic Disorders Will a recessive allele that is lethal...
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From your research, you discover that in this species of fish, the allele for black color is dominant to orange color. Based on this research, can you determine the genotype of a black fish just by looking at it? Why or why not?
 
Yes, because the recessive allele must have been eliminated by the dominant one.
 
Yes, because the phenotype always expresses all the alleles.
 
No, because you do not know the DNA sequence.
 
No, because it could be either homozygous dominant or heterozygous.
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