For a Particular Plant, Red Flowers (A)are Dominant Over Yellow

question 20

Essay

For a particular plant, red flowers (A)are dominant over yellow flowers (a).An initial cross was made between a plant that was ttrue-breeding for red flowers, and another plant ttrue-breeding for yellow flowers.F₁ progeny, all having red flowers, were allowed to form seeds, which were then planted to generate F₂ progeny.Pollen from all the resulting F₂ plants was pooled and used to fertilize ttrue-breeding yellow plants.What proportion of the progeny resulting from this cross would be expected to have yellow flowers?

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Definitions:

Operant Behavior

A behavioral concept that involves an organism's actions being influenced by the consequences that follow, as described in operant conditioning.

Reinforcement

In behaviorist psychology, it refers to any stimulus that strengthens or increases the probability of a specific response or behavior by delivering a reward or removing an unpleasant stimulus.

Variable-Ratio Schedule

In operant conditioning, a reinforcement schedule where responses are rewarded after an unpredictable number of responses, leading to high and steady response rates.

Piece-Rate Pay

A compensation system where workers are paid a fixed rate for each unit of production completed, motivating higher productivity.