Genetic Mutations

Hello and welcome to the
Protein Production Center!
Just click "Start" to enter the
factory.

Start

Genetic Mutations

Congratulations on your
new job as the Quality Control Supervisor for the Protein Production Center.

It is your responsibility to
make sure the proteins
produced each day have the
correct amino acid
sequence.

To get started, let's
review the process of protein synthesis.

Genetic Mutations

DNA codes for proteins.

Messenger RNA copies the code,

and transfer RNA assembles the amino acids in the correct order for each type of protein.

Any mistake that you see in
the amino acid sequence
indicates a mutation or
something incorrect in the
DNA code.

It’s your job to identify the
mistakes and then determine
what type of mistake in the DNA code created the incorrect
amino acid sequence.

Genetic Mutations

Check the clipboard to review the three
types of point mutations.

Sequence of the Day

This is today’s
sequence of amino
acids.

When a new sequence appears
on the screen, roll your cursor over
each amino acid to make sure the
DNA code matches the code for
the sequence of the day.

If there is a mistake, use
the mRNA Codon Chart to identify the problem.

Report the problem using
the checklist on the clipboard,
and then recycle the amino acids.

If everything checks out,
click the green check mark
and move to the next
protein.

If you need a reminder
about the Quality Control
processes, just check the
QC Handbook.

It looks like you’re all
set to go. Good luck!

Protein Production Center

Sequence of the Day

Protein Production Center

Wow, you had a great
first day on the job.

Now I’ll just ask you a few
questions to see what you
remember from your first day
as Quality Control
Supervisor.

Protein Production Center

Which type of point mutation seems to have the least impact on the type of protein produced?

Substitution

A

Insertion

B

Deletion

C

Which two types of mutations allow the DNA base sequence to shift?

Substitution and Deletion

A

Substitution and Insertion

B

Deletion and Insertion

C

Which explanation best describes why a change in one letter of a DNA codon might not affect the protein produced?

Many proteins can perform the same function as other proteins.

A

Not all mutations have a serious effect on an organism.

B

Several codon triplets code for the same amino acid.

C

Protein Production Center

All right! Great job!
I can tell you’ve learned a lot
today. If you want to double
check the proteins, just
click "Replay".

Replay