22. Evolution of Populations
Genetic Variation
Multiple Choice
Multiple ChoiceThe lethal genetic disorder Tay-Sachs disease occurs in individuals with two copies of a recessive allele of the responsible gene. Which of the following statements is true?
A
Because homozygous recessive individuals die, the recessive allele will eventually be lost from the population.
B
Only homozygous dominant individuals will be able to survive and reproduce.
C
In the heterozygous condition, the dominant allele will overcome the recessive allele and only the dominant allele will be passed on to offspring.
D
Homozygous dominant individuals will be more likely to reproduce than heterozygous individuals.
E
Heterozygous individuals will survive and may pass the recessive allele on to their offspring.
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