Evolution & Genetics

Which statement supports the theory of natural selection

• All organisms produce more offspring than can survive.
• Organisms live in harmony with one another despite limited resources.
• Organisms with favorable traits are more likely to die.
• Over time advantageous traits will be found in more of the population.

A certain genetic mutation is found with a high frequency in populations of humans living in places that experienced a deadly disease in the past. This same mutation is rare in places that have no history of the disease. Based on how genes work, this data best supports which of the following explanations?

• The genetic mutation was present in all populations but did not get passed on in places where humans did not contract the disease.

• This genetic mutation codes for the production of a protein that provides resistance to the disease.

• The disease causes the genetic material of humans to mutate just before it causes their disease.

• Humans with this mutation develop this disease and then spread it to other humans without the mutation.

Which of the following is required for a trait to become more common over time in a population?

• There must be many varieties of the trait in the population.

• The trait must allow members of the population to eat only some kinds of food.

• The trait must give individuals an advantage in producing offspring that survive.

• The trait must be the result of an immediate change in the environment.

Sources of variations include _______ and ______?

• sexual reproduction, mutations
• asexual reproduction, mutations
• biological evolution, genetics
• biological evolution, genetics

Species with ______variation are ______likely to survive.

• more, less
• less,less
• less,more
• more,more

Choose which scientist corresponds best with the statement: 
acquired characteristics are inherited

• Darwin 
• Lamarck