Question

Dominant trait is one that

• A. decides fate of organism in a population
• B. is expressed in first filial generation
• C. appears in the proportion of $\raisebox{1ex}{$1$}\!\left/ \!\raisebox{-1ex}{$4$}\right.$in second filial generation.
• D. qualifies an organism to be the primary consumer.

Answer 1

The correct option is B

is expressed in first filial generation

The correct option is B.

Explanation of the correct option :

1. The trait that first appears or is visibly displayed in the organism is called the dominant trait.
2. Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists.
3. Example: In human beings, we observe V-shaped hairline, Almond-shaped eyes, Right handedness, Detached earlobes, etc.

Explanation of the incorrect option:

Option A:

Dominant traits do not decide the fate of a population.

Option C:

The dominant trait does not appear in the proportion of $\frac{1}{4}$ the second filial generation.

Option D:

1. Dominant trait does not qualify an organism to be the primary consumer.
2. It is not decided by the trait of an organism but by the arrangement of the organism in the food web.

Final answer: Dominant trait is one that is expressed in the first filial generation.