Evolution and Gene Variation

Evolution and Natural Selection

Darwin and Evolution

• Variation within the population due to mutation.

• What is the variation? Explain the advantage.

• Who is going to survive and reproduce?

• What characteristic/gene is passed on to the offspring?

Poll

Do you understand how to apply the golden rules to different questions?

• Yes

• No

Bacteria

Antibiotic Resistance

Antibiotic Resistance

Multiple Choice

What is likely to happen to a species that is poorly suited to its environment? *

• it will not survive

• it will survive and have lots of offspring

Multiple Choice

The best-adapted organisms are more likely to survive and breed. This is called *

• Mutation

• Natural Selction

• Selective breeding

• Evolution

Multiple Choice

According to the theory of evolution, the genes of some organisms change in a process called *

• evolution

• mutation

• fossilisation

• fertillation

Multiple Choice

The organisms that survive in this world of competition are the ones that are *

• fittest

• strongest

• best adapted

• best looking

Multiple Choice

A variation that can help a species survive in its environment is called *

• a characteristic

• an adaptation

• its habitat

• competition

Multiple Choice

Small changes in DNA are called

• clones

• mutations

• variations

• creations

Multiple Choice

Which one of the following is not a reason why species adapt and change?

• too much food available

• producing too many young

• producing too many offspring

• competition for the same resources

Multiple Choice

The theory of evolution by natural selection was independently developed by *

• Sherlock Holmes and Doctor Watson

• Charles Darwin and James Watson

• Charles Darwin and Alfred Wallace

• James Watson and Francis Crick

Multiple Choice

Darwin's theory of evolution states that species evolve by

• natural selection

• choice

• unnatural selection

• artificial selection

Multiple Choice

Natural selection results in

• extinction due to artificial selection

• evolution due to natural selection

• extinction due to natural selection

• evolution due to survival of the fittest

Multiple Choice

The process by which changes in organisms happen over many, many generations is known as *

• variation

• survival

• evolution

• revolution