In mendel's experiment, why did wrinkled seeds show up in the f2 generation, even though they were not present in the f1 generation? a. the f2 generation was homozygous. b. the f1 generation carried recessive alleles. c. the f2 generation carried only dominant alleles. d. the f1 generation was homozygous.

B. The F1 generation carried recessive alleles.

Explanation: Recessive alleles are able to express only when these alleles are present in homozygous state. This means that only two recessive alleles together can show the respective phenotype. In F1 generation, since the genotype was heterozygous, for eg Rr, it was expressing the dominant trait only, i.e. round seeds. But after selfing of Rr and Rr in F2 generation, rr was formed. That is why, F2 contained wrinkled seeds.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: