The Hardy-Weinberg principle assumes that certain forces are not acting on a population. If they are acting, they could cause evolutionary change.

What are some of these forces?

Select all that apply.

a. genetic equilibrium reached
b. random mating, no sexual selection
c. mutations occurring
d. natural selection occurring

for a quiz pls help

rip lol

c and d are right, took the test.

To determine which forces are assumed to not be acting on a population according to the Hardy-Weinberg principle, we can analyze each option provided and identify those that apply.

a. Genetic equilibrium reached: This option represents the assumption made by the Hardy-Weinberg principle, suggesting that the population is not undergoing any changes in allele frequencies over time. Therefore, this force is assumed to be absent according to the principle.

b. Random mating, no sexual selection: The Hardy-Weinberg principle assumes that mating occurs randomly within the population and that there is no selective preference for certain traits. Therefore, this force is assumed to be absent.

c. Mutations occurring: The Hardy-Weinberg principle assumes that mutations, which are random changes in the DNA sequence, are not occurring within the population. Therefore, the presence of mutations suggests a force that goes against the assumptions of the principle.

d. Natural selection occurring: The Hardy-Weinberg principle assumes the absence of natural selection, which is the process by which certain traits confer advantages to individuals in their environment, increasing their chances of survival and reproduction. So, the presence of natural selection represents a force acting on the population contrary to the principle's assumptions.

Based on this analysis, the forces that are assumed to not be acting on a population according to the Hardy-Weinberg principle are option a (genetic equilibrium reached) and option b (random mating, no sexual selection). Therefore, the correct options are a and b.