Unit 6: Genetic Variation and Evolution

Mutations are important because they bring about

• death of the organism in which they develop
• genetic variation needed for a population to evolve
• benefits for the individual, not for the population
• Hardey-Weinberg equilibrium within a population

An error in DNA copying that results in a new trait

• Homeostasis
• Mutation
• Natural Selection
• Selective Breeding

Which of the following is not mutagen?

• UV Rays

• Processed Food

• Viruses

• Adenine

What type of mutation is shown in the image?

• Frameshift, Deletion

• Nondisjunction

• Trinucleotide Repeat Expansion

• Silent Mutation

A point mutation that does not change the amino acid sequence is known as a(n) ____________ mutation.

• Frameshift

• Nondisjunction

• Inversion

• Substitution, Silent

What type of mutation is shown in the image?

• Nondisjunction

• Translocation

• Trinucleotide Repeat Expansion

• Frameshift

What is the name of the following mutation?

• Silent

• Trinucleotide Repeat Expansion

• Nondisjunction

• Frameshift

What causes "sickle shaped" blood cells?

• Point Mutation

• Frameshift Mutation

• Trinucleotide Repeat Expansion

• Gene Translocation

Mutations can cause a species to change in appearance over time.

• True

• False

Mutations are random.

• True

• False