Question

which statement describes the f₁ generation of a mendelian monohybrid cross between two true - breeding parents?
only the dominant trait is visible in the f₁ generation.
only the recessive trait is visible in the f₁ generation.
neither the dominant nor recessive trait is visible in the f₁ generation.
both the dominant and recessive traits are visible in the f₁ generation.

Explanation:

In a Mendelian monohybrid cross between two true - breeding parents (e.g., \(AA\times aa\)), the \(F_{1}\) generation has a heterozygous genotype (\(Aa\)). According to Mendel's law of dominance, the dominant allele (\(A\)) masks the expression of the recessive allele (\(a\)). So, only the dominant trait is visible in the \(F_{1}\) generation.

Answer:

Only the dominant trait is visible in the \(F_{1}\) generation.