Mutations
Biology ⇒ Genetics and Heredity
Mutations starts at 10 and continues till grade 12.
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See sample questions for grade 10
A DNA sequence changes from CCG to CCA, but both code for the same amino acid. What type of mutation is this?
A frameshift mutation is more likely to have a drastic effect on a protein than a point mutation. Explain why.
Describe how a substitution mutation can lead to a genetic disorder.
Describe how exposure to UV light can cause mutations in DNA.
Describe the difference between a duplication and a deletion chromosomal mutation.
Describe what happens during a deletion mutation.
Explain the difference between a germline mutation and a somatic mutation.
Explain the role of DNA repair mechanisms in preventing mutations.
Explain why mutations are important for the process of natural selection.
Explain why not all mutations result in a change in phenotype.
Explain why some mutations have no effect on the organism.
What is a mutation in genetics?
A geneticist finds that a certain mutation increases the fitness of an organism in one environment but decreases it in another. What is the term for this type of mutation?
A patient inherits a mutation from one parent that does not cause disease unless a second mutation occurs in the same gene from the other parent. What is this genetic phenomenon called?
A scientist observes that a population of bacteria exposed to an antibiotic develops resistance over several generations. Explain how mutations contribute to the development of antibiotic resistance in this population.
Describe how a mutation in a splice site of a gene could affect the resulting protein.
Explain how a single base insertion near the start of a gene can affect the entire protein produced by that gene.
