Directions: The passage below is followed by several questions. After reading the passage, choose the best answer to each of the ACT Science practice test questions. You may refer to the passage as often as necessary. Calculators may NOT be used.
q = number of a alleles/total number of alleles
When the number of alleles in the population changes over time.
When individuals do not choose mates based on genotypes.
When all members of the population have an equal chance of reproducing and passing their genes to the next generation.
When the proportion of a given allele relative to the other alleles in the population changes over time.
Let the letter p stand for the frequency of allele B. Let the letter q stand for the frequency of allele b. We can calculate p and q as follows:
p = number of B alleles/total number of alleles
q = number of b alleles/total number of alleles
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ACT Science Practice Test 4 >>