Professional DevelopmentAnswer Key

Gtc Dna

11 community-sourced questions and answers. Free — no login.

Community-sourced. Answers may be wrong or out of date. Always verify with your official training portal before submitting. Not affiliated with any branch, agency, or vendor. Details.
QUESTION 1

A mutation in the DNA that changes the sequence of a codon but does NOT change the amino acid sequence of the protein describes a

ANSWER

Silent mutations

QUESTION 2

nonsense mutation

ANSWER

Changes a codon to introduce a premature stop codon

QUESTION 3

point mutation

ANSWER

change a single nucleotide in a mutant gene compared to the normal gene. examples are missense, nonsense, and silent mutations

QUESTION 4

missense mutation

ANSWER

Changes a single amino acid in a protein

QUESTION 5

frameshift mutation

ANSWER

Change the number of nucleotides in a mutant gene compared to the normal gene. Examples are insertion and deletion mutations

QUESTION 6

When comparing a normal and mutant gene sequence, how do you identify a frameshift mutation

ANSWER

The number of nucleotides between the normal and mutant gene sequences is different and the amino acids sequence is different

QUESTION 7

If the coding (non-template) DNA sequence of a normal gene is 5' GTC GCA TGG TGA 3' what kind of mutation would create the mutant gene sequence 5'GTC, GAC ATG GTG A 3'

ANSWER

Insertion mutation

QUESTION 8

If the coding (non-template) DNA sequence of a normal gene is 5' GTC GCA TGG TGA 3 ' which DNA sequence would represent a nonsense mutation?

ANSWER

5 GTC GCA TAG TGA 3

QUESTION 9

If coding (nontemplate) DNA sequence of a normal gene is 5 GTC GCA TGG TGA 3, which sequence would represent a deletion mutation

ANSWER

5 GTC GCA TGT GA3

QUESTION 10

Which of the following would be considered a point mutation to a DNA strand that consists of a nucleotide sequence 5 CTG ACG TAT CTT AAT 3

ANSWER

5 CTG ACG TAT CTT AAT 3

QUESTION 11

The RNA sequence. 5 CUC AUA GCC UGA CCC 3 is mutated to 5 CUC AUA GCC UAA CCC 3 what kind of mutation is this?

ANSWER

Silent mutation

Looking for a different version?

CBTs get updated every year. Search for the exact version you're taking (e.g. "cyber awareness 2025").

Search all study materials