Question

question 31
2 pts
what was mendels explanation for his observation that traits that had disappeared in the f1 generation reappeared in the f2 generation of the pea plants he used in his experiments?
new mutations were frequently generated in the f2 progeny,
einventing\ traits that had been lost in the f1.
traits can be dominant or recessive, and the recessive traits were \hidden\ by the dominant ones in the f1.
the traits were lost in the f1 due to dominance of the parental traits.
the mechanism controlling the appearance of traits was different between the f1 and the f2

Explanation:

Mendel proposed the concepts of dominant and recessive traits. In the F1 generation, the dominant trait masks the recessive one. In the F2 generation, when the F1 plants self - pollinate, the recessive traits can reappear as the genetic combinations allow for the expression of the recessive alleles. Mutations are not the reason here as per Mendel's work. The mechanism of trait appearance (based on allele combinations) is consistent between F1 and F2. Also, the traits are not "lost" in F1 due to parental trait dominance in the way described in the wrong options.

Answer:

Traits can be dominant or recessive, and the recessive traits were "hidden" by the dominant ones in the F1.