In the F2 generation of Mendel’s crosses, all plants had the dominant trait. half of the plants had the domina

Question

In the F2 generation of Mendel’s crosses,
all plants had the dominant trait.
half of the plants had the dominant allele.
all plants had both the dominant and recessive alleles.
one in four plants had two alleles for the recessive trait.

GPT-5 mini · Answer

Correct answer: "one in four plants had two alleles for the recessive trait."

Explanation: In a monohybrid F1 cross (Aa × Aa), the F2 genotype ratio is 1 AA : 2 Aa : 1 aa. Thus 1/4 are homozygous recessive (aa) and show the recessive trait. The phenotype ratio is 3 dominant : 1 recessive. The other statements are therefore incorrect (not all plants show the dominant trait; 3/4—not 1/2—have at least one dominant allele; only the heterozygotes, 1/2, have both alleles).

In the F2 generation of Mendel’s crosses,
all plants had the dominant trait.
half of the plants had the dominant allele.
all plants had both the dominant and recessive alleles.
one in four plants had two alleles for the recessive trait.

All Answers 1

Submit Your Answer

In the F2 generation of Mendel’s crosses, all plants had the dominant trait. half of the plants had the dominant allele. all plants had both the dominant and recessive alleles. one in four plants had two alleles for the recessive trait.

All Answers 1

Submit Your Answer

In the F2 generation of Mendel’s crosses,
all plants had the dominant trait.
half of the plants had the dominant allele.
all plants had both the dominant and recessive alleles.
one in four plants had two alleles for the recessive trait.