Question

directions: analyze the dna sequences below. circle the location of the mutation and answer the questions.

5
original dna sequence 1: aat taa ccg ccc
mutated dna sequence 1: aat taa cca ccc
is the mutation an insertion, deletion, or substitution?
is the mutation classified as a point or frameshift mutation?

6
original dna sequence 2: aaa ttc ccg ggg
mutated dna sequence 2: aaa ttg ccc ggg
is the mutation an insertion, deletion, or substitution?
is the mutation classified as a point or frameshift mutation?

7
original dna sequence 3: aat taa ccg ccc
mutated dna sequence 3: aat taa gcg ccc
is the mutation an insertion, deletion, or substitution?
is the mutation classified as a point or frameshift mutation?

8
original dna sequence 4: ttt ccc ggc ttc
mutated dna sequence 4: ttc ccg gct tca
is the mutation an insertion, deletion, or substitution?
is the mutation classified as a point or frameshift mutation?

9
one of the mutated dna sequences above will be silent. which of the four sequences above will be silent? explain your answer.

© science from the south 2021

Explanation:

Analyze DNA sequences for mutation type (insertion, deletion, substitution) and classification (point/frameshift). Silent mutation involves substitution with same amino acid.

Answer:

1. Is the mutation an insertion, deletion, or substitution? Substitution

Is the mutation classified as a point or frameshift mutation? Point

1. Is the mutation an insertion, deletion, or substitution? Substitution

Is the mutation classified as a point or frameshift mutation? Point

1. Is the mutation an insertion, deletion, or substitution? Substitution

Is the mutation classified as a point or frameshift mutation? Point

1. Is the mutation an insertion, deletion, or substitution? Deletion

Is the mutation classified as a point or frameshift mutation? Frameshift

1. Which of the four sequences above will be silent? Sequence 1. Explanation: Original CCG (Pro) and mutated CCA (Pro) code for the same amino acid.