Selective Breeding and Natural Selection

The video explains selective breeding, also known as artificial selection, where humans breed plants and animals for desirable traits. It contrasts this with natural selection, where nature determines which traits are passed on. Examples include breeding dogs for size and speed, and plants for color and resistance. The lesson concludes with a summary of how selective breeding has changed organisms over generations.

What is another term for selective breeding?

• Natural selection

• Genetic mutation

• Artificial selection

• Spontaneous generation

What is the main goal of selective breeding?

• To mimic natural selection

• To eliminate all genetic diversity

• To develop organisms with desirable traits

• To create new species

How were greyhounds developed through selective breeding?

• By breeding the most colorful dogs

• By breeding the most aggressive dogs

• By breeding the fastest dogs

• By breeding the smallest dogs

What is the origin of all dog breeds according to the video?

• A wild cat ancestor

• A wild wolf-like ancestor

• A domesticated fox ancestor

• A prehistoric bear ancestor

What does selective breeding in plants involve?

• Cross-breeding with animals

• Selecting plants with undesirable traits

• Choosing plants with preferred features

• Randomly selecting plants

What is the main difference between natural selection and artificial selection?

• Artificial selection is driven by environmental factors

• Natural selection is faster

• Artificial selection occurs naturally

• Natural selection is driven by environmental factors

What is the process called where nature selects the best-adapted organisms to survive?

• Selective breeding

• Natural selection

• Artificial selection

• Genetic engineering

Which of the following is an example of selective breeding in plants?

• Developing faster horses

• Creating new animal species

• Breeding larger fish

• Producing different colored cauliflowers

What is the result of many generations of selective breeding?

• Organisms look different from their wild ancestors

• Organisms look similar to their wild ancestors

• Organisms become extinct

• Organisms lose all genetic diversity

What is an example of artificial selection mentioned in the video?

• Domestication of wild mustard

• Spontaneous generation of life

• Evolution of dinosaurs

• Natural extinction of species