DNA & Genes
100: What molecule contains genetic information in living things?
Answer: DNA
100: What is a change in DNA called?
Answer: A mutation
100: What is a trait that helps an organism survive called?
Answer: An adaptation
100: What process causes helpful traits to become more common over time?
Answer: Natural selection
100: What is the change in inherited traits of a population over time called?
Answer: Evolution
200: What are sections of DNA that code for traits called?
Answer: Genes
200: Mutations can be beneficial, harmful, or what?
Answer: Neutral
200: What adaptation helps polar bears blend into their environment?
Answer: White fur
200: Does natural selection act on individuals or populations?
Answer: Populations
200: What is the formation of new species called?
Answer: Speciation
300: What are the four bases found in DNA?
Answer: Adenine, Thymine, Cytosine, and Guanine
will accept ATCG
300: What are substances that cause mutations called?
Answer: Mutagens
300: Why are owl feathers adapted for silent flight?
Answer: To help them sneak up on prey
300: What environmental event caused larger-beaked finches to survive better on the Galápagos Islands?
Answer: A drought
300: What type of barrier can separate populations and lead to speciation?
Answer: Geographic barriers
400: What do genes code for that help determine traits?
Answer: Proteins
400: Which type of cells must contain a mutation for it to be inherited by offspring?
Answer: Reproductive cells
400: What adaptation helps a cactus survive in dry deserts?
Answer: Spines or water-storing stem
400: What must exist in a population for natural selection to occur?
Answer: Genetic variation
400: What is it called when an entire species dies out?
Answer: Extinction
500: What is the sequence of three DNA bases that codes for an amino acid called?
Answer: A triplet
500: How can a mutation affect a protein?
Answer: It can change the protein’s shape or function
500: What type of adaptation is migration: structure, behavior, or function?
Answer: Behavior
500: Why do organisms with helpful traits usually reproduce more successfully?
Answer: They survive better in their environment
500: What island was used as an example of lemur speciation in the lesson?
Answer: Madagascar