객관식
In the study of genetics, the offspring of the P (parental) generation is referred to as the:
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2. Mendel's Laws of Inheritance
Mendel's Experiments and Laws
Multiple Choice
When Mendel crossed short (tt) pea plants with short (tt) pea plants, what was the genotype of all the offspring?
A
All offspring were homozygous recessive (tt)
B
Half the offspring were tall and half were short
C
All offspring were homozygous dominant (TT)
D
All offspring were heterozygous (Tt)
검증된 단계별 안내1
Identify the genotypes of the parent plants. Both parents are short pea plants with genotype \(tt\), meaning they are homozygous recessive.
Recall that each parent can only contribute one allele to the offspring. Since both parents are \(tt\), each parent contributes a \(t\) allele.
Determine the possible genotypes of the offspring by combining the alleles from each parent. The only possible combination is \(tt\).
Understand that \(tt\) genotype corresponds to the short phenotype because \(t\) is the recessive allele for shortness.
Conclude that all offspring will be homozygous recessive (\(tt\)) and therefore short, with no variation in genotype or phenotype among the offspring.
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