Next, Mendel allowed the peas in the F1 generation to self-pollinate, forming the
F2 generation. What describes Mendel's observations and conclusion
about the
F2 generation?
a. Three fourths of the F2 plants show the round seed phenotype and carry th
dominant allele for roundness.
b. One fourth of the F2 plants show the round seed phenotype and are
heterozygous for roundness.
c. The F2 plants are all heterozygous.
d. The F₂ plants all have wrinkled seeds, and some carry the allele for roun
seeds.



Answer :

In the F2 generation resulting from Mendel's experiments with pea plants, he made specific observations and conclusions. Mendel observed that: a. Three fourths of the F2 plants displayed the round seed phenotype and carried the dominant allele for roundness. This indicates a 3:1 ratio of round to wrinkled seeds in the F2 generation. b. One fourth of the F2 plants exhibited the round seed phenotype and were heterozygous for roundness. These plants carried one dominant allele for round seeds and one recessive allele for wrinkled seeds. c. None of the options mention that all F2 plants are heterozygous, so this statement is not accurate based on Mendel's observations. d. The statement that all F2 plants have wrinkled seeds and some carry the allele for round seeds is not consistent with Mendel's actual findings, as he clearly observed a 3:1 ratio of round to wrinkled seeds. Therefore, based on Mendel's experiments and observations, option a. Three fourths of the F2 plants show the round seed phenotype and carry the dominant allele for roundness accurately describes his findings and conclusions regarding the F2 generation.

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