Multiple Choice
In Mendel's monohybrid cross, if both parents are homozygous recessive for height (genotype tt), what is the expected ratio of tall to short offspring?
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2. Mendel's Laws of Inheritance
Monohybrid Cross
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In a monohybrid cross, the characteristic that results is the _____ trait.
A
recessive
B
incomplete dominant
C
codominant
D
dominant
Verified step by step guidance1
Understand that a monohybrid cross involves one gene with two alleles, typically one dominant and one recessive.
Recall that the dominant trait is the one that is expressed in the phenotype when at least one dominant allele is present.
Recognize that the recessive trait only appears in the phenotype when both alleles are recessive (homozygous recessive).
Note that incomplete dominance and codominance describe different patterns of inheritance where neither allele is completely dominant, which is not the case in a simple monohybrid cross.
Therefore, in a monohybrid cross, the characteristic that results (is expressed) is the dominant trait.
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