What does the term equilibrium refer to in population genetics?
a. a state in which the frequencies of the alleles for a gene remain
constant
b. a state in which the total number of genes in a population remains
variable
c. a state in which the proportions of all alleles in a population vary
constantly
d. a state in which the number of traits an organism has stays the
same

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.