Inbreeding and Its Impact on Genetic Diversity

What is the main idea behind natural selection?

• All members of a population reproduce equally.

• Natural selection eliminates all genetic variations.

• Members with advantageous traits are more likely to survive and reproduce.

• Genetic diversity is not important for a population.

Why is a large gene pool beneficial for a population?

• It prevents any genetic mutations.

• It ensures that all members are genetically identical.

• It increases genetic diversity, allowing adaptation to environmental changes.

• It reduces the number of offspring.

What is inbreeding?

• Mating between members of different populations.

• Mating between members of different species.

• Selective mating within a smaller group of a larger population.

• Random mating within a population.

Which of the following is NOT a common cause of inbreeding in human populations?

• Religious practices

• Random mating

• Cultural preferences

• Geographical barriers

What is Tay-Sachs disease?

• An autosomal dominant disorder

• A disease that affects only animals

• An autosomal recessive disorder

• A disease caused by a viral infection

In an inbred population, why is there a higher chance of offspring being affected by Tay-Sachs disease?

• Because the disease is not genetic.

• Because the disease is dominant.

• Because the population has more carriers of the gene.

• Because the population is larger.

How does inbreeding affect autosomal dominant disorders like Huntington's disease?

• It increases the number of carriers but not affected individuals.

• It prevents the disease from being passed on.

• It increases the likelihood of affected offspring regardless of the mate's genetic status.

• It has no effect on the likelihood of the disease.

Why are carriers of dominant disorders generally more aware of their condition?

• Because the disorder is not genetic.

• Because they show symptoms of the disorder.

• Because they do not have any symptoms.

• Because they are unaffected by the disorder.

Why is genetic counseling important for people in inbred populations?

• To be aware of the risks of having diseased children.

• To ensure they do not have any children.

• To eliminate genetic diversity.

• To increase the number of carriers in the population.

Which type of genetic disorder is more concerning in inbred populations?

• Non-genetic disorders

• Autosomal recessive disorders

• Autosomal dominant disorders

• Viral infections