Multiple Choice
The sickle cell gene,a genetic lethal,is found in high frequency in some areas because
A) the mutation has occurred only among those people.
B) the people in those areas are immune to sickle cell anemia.
C) the gene can confer a resistance to malaria.
D) modern medicine has perfected a cure.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: When a population splits into two or
Q2: The frequency of the sickle cell allele
Q4: Sickle cell anemia is found<br>A)only in blacks.<br>B)only
Q5: Mutations are<br>A)always harmful.<br>B)always more beneficial than previous
Q6: The adaptive fitness of a mutation is
Q7: Even though sickle cell confers no advantage
Q8: Genetic drift is more effective in<br>A)large populations.<br>B)populations
Q9: The form of genetic drift that involves
Q10: The mutation that leads to sickle cell
Q11: Gene flow occurs when<br>A)a population splits in