Allele frequency, speciation and conservation Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. 1 in 400 babies is born with a recessive condition. Assuming Hardy-Weinberg equilibrium, what is the frequency of the recessive allele?
- A. 0.0025
- B. 0.05
- C. 0.5
- D. 0.95
2. Which would cause the frequency of an allele in a population to change?
- A. Random mating
- B. A very large population
- C. Migration of individuals with different allele frequencies into the population
- D. The absence of mutation
3. In the Hardy-Weinberg equation, what does 2pq represent?
- A. The frequency of the dominant allele
- B. The frequency of the recessive allele
- C. The frequency of homozygous dominant individuals
- D. The frequency of heterozygous individuals
4. Which statement describes allopatric speciation?
- A. New species form from populations that are separated by a geographical barrier
- B. New species form in the same habitat without any barrier
- C. Two species interbreed to form one species
- D. A species forms when a mutation occurs in one individual
5. Which statement about mutation and natural selection is correct?
- A. Mutations occur because the organism needs them
- B. Selection creates new alleles
- C. Mutation produces new alleles at random, and selection increases the frequency of those that give an advantage
- D. Selection reduces the frequency of all alleles equally