Mutations in 7th Grade

What are the causes of mutations?

• Errors during DNA replication, exposure to mutagens, environmental factors

• Healthy diet

• Genetic engineering

• Regular exercise

Explain the effects of mutations on an organism.

• Mutations only have harmful effects on an organism.

• Mutations can have no effect, beneficial effects, or harmful effects on an organism.

• Mutations can only have effects on non-living organisms.

• Mutations always have beneficial effects on an organism.

Name one genetic disorder caused by mutations.

• Down Syndrome

• Sickle Cell Anemia

• Hemophilia

• Cystic Fibrosis

Provide an example of a mutation in humans.

• Down syndrome

• Cystic fibrosis

• Sickle cell anemia

• Huntington's disease

How do mutations occur in DNA?

• Mutations occur in DNA due to lack of sleep

• Mutations occur in DNA due to eating spicy food

• Mutations occur in DNA due to errors in DNA replication, exposure to mutagens, or spontaneous changes.

• Mutations occur in DNA due to exposure to sunlight

Discuss the difference between gene mutations and chromosomal mutations.

• Gene mutations affect a specific gene, while chromosomal mutations impact entire chromosomes.

• Gene mutations and chromosomal mutations have the same impact

• Gene mutations impact entire chromosomes

• Chromosomal mutations affect a specific gene

What role do mutations play in evolution?

• Mutations introduce genetic variations that can lead to new traits, influencing the process of evolution.

• Mutations have no impact on evolution

• Mutations only occur in non-living organisms

• Mutations always result in negative outcomes

Describe the impact of mutations on protein synthesis.

• Mutations can alter the sequence of nucleotides in DNA, leading to changes in mRNA and potentially different amino acids being incorporated into the protein.

• Mutations only affect the structure of DNA, not protein synthesis

• Mutations always result in the production of a functional protein

• Mutations have no impact on protein synthesis

How can mutations be beneficial to an organism?

• Mutations can introduce new genetic variations that may provide an advantage in adapting to changing environments or resisting diseases.

• Mutations have no impact on an organism's survival or reproduction.

• Mutations only occur in non-essential genes that do not affect the organism.

• Mutations always result in negative outcomes for organisms.

Explain the concept of silent mutations.

• Silent mutations occur when a nucleotide substitution does not affect the amino acid encoded by the codon.

• Silent mutations always lead to a change in the amino acid sequence

• Silent mutations are only caused by insertions or deletions of nucleotides

• Silent mutations are always harmful to the organism