What four factors can cause the frequency of alleles and genotypes in a population’s gene pool to change; i.e., what four factors can cause evolution to occur?

1. How is a population defined?

all of the individuals of the same species

all of the individuals of the same species that occupy the same area

all of the individuals of the same species that have the possibility of breeding with one another

both b and c

2. What is a gene pool?

all of the genes and genotypes present in a genus

all of the genes and genotypes present in a population

all of the possible alleles for one characteristic

the amino acids available for protein synthesis

3. What do the terms evolution and evolve mean in the field of biology?

The word evolution means change, and things that change are said to evolve. Biologically, this occurs at the level of the population, not the organism.

The word evolution means change, and things that change are said to evolve. Biologically, this occurs when a single organism’s features are modified by the environment in which it lives.

The word evolution means change, and things that change are said to evolve. Biologically, this occurs when a small group of organisms acquire a trait through repeated reactions to a new stimulus.

none of the above

4. What four factors can cause the frequency of alleles and genotypes in a population’s gene pool to change; i.e., what four factors can cause evolution to occur?

natural selection, mutation , gene flow, and genetic drift

weather, season, amount of daylight, and humidity

temperature, pH, salinity, and density

dominant/recessive, incomplete dominant, co-dominant, and polygenic traits