Understanding Genetic Diversity and Its Impact

The video tutorial discusses the three types of biodiversity: genetic, species, and ecosystem diversity. It emphasizes the importance of genetic diversity, which allows species to adapt to changing environments. The loss of genetic diversity can lead to reduced fitness and increased susceptibility to diseases, as seen in the Tasmanian devils. The tutorial concludes with a review and questions to reinforce the concepts learned.

What are the basic units that determine hereditary traits?

• Mitochondria

• Genes

• Atoms

• Molecules

Why is genetic diversity important for a species?

• It prevents species from evolving.

• It ensures all individuals are identical.

• It allows adaptation to changing environments.

• It helps in maintaining a stable population size.

What is a key factor that contributes to the survival of a species in a changing environment?

• Uniform genetic makeup

• High genetic diversity

• Low population numbers

• Stable environmental conditions

What is a potential consequence of losing genetic diversity in a species?

• Reduced fitness and adaptability

• Higher resistance to diseases

• Increased ability to adapt to new environments

• Greater genetic variation

Which disease are Tasmanian devils particularly vulnerable to due to low genetic diversity?

• Stomach cancer

• Facial cancer

• Arthritis

• Pneumonia