Genetic Biodiversity Concepts

The video explains genetic biodiversity, detailing factors that increase it, such as mutations and migration, and factors that decrease it, like natural selection and selective breeding. It also covers cloning, genetic bottlenecks, the founder effect, and genetic drift, providing examples for each concept.

What is the primary focus of the video on genetic biodiversity?

• Factors that can increase or decrease genetic biodiversity

• The impact of genetic biodiversity on climate change

• How to calculate genetic biodiversity

• The history of genetic biodiversity

Which of the following can introduce new alleles into a population?

• Selective breeding

• Random mutations

• Natural selection

• Cloning

How does migration affect genetic biodiversity?

• It decreases genetic biodiversity

• It has no effect on genetic biodiversity

• It increases genetic biodiversity by introducing new alleles

• It only affects plant populations

What is a consequence of selective breeding?

• No change in genetic biodiversity

• Decreased genetic biodiversity

• Increased genetic biodiversity

• Increased mutation rates

What is a genetic bottleneck?

• An increase in genetic diversity

• A severe reduction in population size leading to reduced genetic diversity

• A method of selective breeding

• A type of genetic mutation

What is the founder effect?

• A large population with high genetic diversity

• A small group forming a new population with limited genetic diversity

• A method to increase genetic diversity

• A type of genetic mutation

How did the black Robin population recover?

• Through natural selection

• By increasing hunting

• By introducing new species

• Through conservation efforts

What is genetic drift?

• A random change in allele frequency, especially in small populations

• A method of selective breeding

• A type of genetic mutation

• A process that increases genetic diversity

In which scenario is genetic drift most likely to occur?

• In small populations with low genetic diversity

• In large populations with high genetic diversity

• In populations with high mutation rates

• In populations with high migration rates

What happens to an allele if individuals carrying it do not reproduce?

• The allele becomes more common

• The allele mutates

• The allele is lost from the population

• The allele is transferred to another species