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WorksheetsGene Mutations
Total questions: 10
Worksheet time: 10mins
A substitution mutation that has no effect
on an amino acid's sequence would be best categorized as:
Insertion Mutation
Translocation
Silent Mutation
Deletion Mutation
A change in a DNA sequence from ACGTGGCA to AGTGGCA would best be described as
Insertion
Frameshift
Substitution
Duplication
A nucleotide base is inserted or deleted shifting the entire DNA sequence. In this instance, the entire protein will be changed. Which of the following best describes this type of mutation?
Substitution Mutation
Silent Mutation
Frameshift Mutation
Translocation
The image shown depicts a point mutation. Which of the following categories best describes this mutation?
Missense
Nonsense
Silent
Neutral
Layla is typing on an old typewriter. As she looks at her work, she realizes that the "v" key is not working. Therefore, when she tries to type the word "favorable," she actually types "faorable." This example is an analogy to which of the following types of mutations?
Deletion
Insertion
Substitution
Duplication
The DNA strand TAC GCG ATT results in the mRNA strand AUG CGC UAA. If a base in the first codon undergoes a substitution mutation, what would likely happen to the amino acid that this segment of DNA codes for?
It would be twice as long as it was supposed to be
It would only produce one amino acid
This gene would not be translated
All three codons would be altered
ORIGINAL DNA: TACGCATGC
NEW DNA: TACGCCATGC
What type or types of mutations are observed in this example?
SELECT ALL THAT APPLY
Insertion
Deletion
Substitution
Frameshift
Point
How many nucleotides are involved in a point mutation?
1
2
3
4
A mutation in the third base of a codon for the amino acid Proline (Pro) will always be a silent mutation. Which of the following pieces of information best supports this claim?
Proline is always made from the same 3 bases
As long as the first two bases on the mRNA codon are both C, it will always code for proline; regardless of the 3rd base
Proline is a stop codon, so it isn't actually an amino acid and therefore cannot be mutated
Proline has evolved to become resistant to harmful mutations
Which of the following types of mutations will impact the FEWEST codons?
Substitution
Insertion
Deletion
Frameshift
