Mendel Accounted for the Observation That Traits That Had Disappeared

question 58

Multiple Choice

Mendel accounted for the observation that traits that had disappeared in the F1 generation reappeared in the F2 generation by proposing that

• A) new mutations were frequently generated in the F2 progeny, "reinventing" traits that had been lost in the F1.
• B) the mechanism controlling the appearance of traits was different between the F1 and the F2 plants.
• C) traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1.
• D) the traits were lost in the F1 due to dominance of the parental traits.
• E) members of the F1 generation had only one allele for each trait, but members of the F2 had two alleles for each trait.

---

Definitions:

Pride

A feeling of deep pleasure or satisfaction derived from one's own achievements, the achievements of those with whom one is closely associated, or from qualities or possessions that are widely admired.

Practicality

The aspect of being concerned with the actual doing or use of something rather than with theory and ideas.

Empirical Approach

A method of gaining knowledge through direct observation, experience, or experimentation, emphasizing evidence-based conclusions.

Humanistic Psychology

A psychological perspective that emphasizes the study of the whole person and inner feelings to understand behavior.