8. Use the segment of DNA below to show the process of transcription by filling in the missing half with mRNA.
- T A C T G T G C G A A T G C A A T T -
16. Examine the strand below containing an insertion mutation.
- T A C T G T T G C G A A T G C A A T T -
a) Determine the correct sequence of amino acids coded for by this strand.
b) How does this compare to the sequence from question 8?
An incorrect amino acid appears in this type of mutation, creating the wrong protein. It is called a missense mutation.
17. Below is another example of a substitution mutation.
- T A C T G T G C G A T T G C A A T T -
a) Determine the correct sequence of amino acids coded for by this strand.
This type of mutation, in which a stop codon is created, is very serious because the construction of the protein ends. A protein is not built, or an incorrect fragment is built. This is a nonsense mutation.