The entire collection of genes and alleles is a population'sMultiple Choicegenotype.phenotype.dominant traits.recessive traits.gene pool.

The correct answer to the question is gene pool.

Explanation:

1. Definition: The gene pool refers to the complete set of genetic information (alleles and genes) within a population. It encompasses all variations and is crucial for understanding the genetic diversity and evolution of the population.

2. Other Options:

   • Genotype: This term refers specifically to the genetic makeup of an individual with regard to a specific trait, not the entire population.
   • Phenotype: This denotes the observable characteristics or traits of an organism, resulting from the interaction of its genotype with the environment.
   • Dominant Traits: These are traits that can express themselves even when only one allele is present, and do not represent the entire genetic variety of a population.
   • Recessive Traits: Similar to dominant traits, these are those that require both alleles to be present for their expression and are also not indicative of the whole population's genetic arsenal.

In summary, the term that best describes the entire collection of genes and alleles in a population is the gene pool.