OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There is no difference
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The heterozygous genotype has a unique phenotype
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There is no heterozygous genotype
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There is only one phenotype regardless of genotype.
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Detailed explanation-1: -In complete dominance, only one allele in the genotype is seen in the phenotype. In codominance, both alleles in the genotype are seen in the phenotype. In incomplete dominance, a mixture of the alleles in the genotype is seen in the phenotype.
Detailed explanation-2: -In incomplete dominance, the phenotype in a heterozygous individual is visibly less intense than that in an individual homozygous for the dominant allele, so that AA and Aa genotypes produce different phenotypes. Hence, the heterozygote (Aa) will have a phenotype intermediate between that of AA and aa individuals.
Detailed explanation-3: -How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross? There is only one phenotype regardless of genotype. What does heterozygous mean? An allele whose trait only shows up when no dominant allele is present.