Poll

President Donald Trumps presidency will be:
Excellent
Great
Neither good nor bad
Bad
Terrible
If you would like to vote in this poll, please login or register

New Topic  
wrote...
Posts: 15
Credits: 0
Rep: 5 0
3 years ago
Point mutations

The instructions for assembling polypeptides are contained in DNA. Consequently, mutations in DNA sometimes affect protein structure. A mutation will initially affect a protein’s primary structure, but changes at higher levels of structure may follow.
Point mutations are mutations that affect a single nucleotide pair in DNA. The figure below shows different types of point mutations and the effects they have on protein primary structure.

In this activity, you will examine three different mutations.
Drag the white and purple labels to the white targets to indicate what each mutant mRNA codon codes for. (You will probably need to consult the codon table for mRNA .)
Drag the pink labels to the pink targets to indicate the type of mutation.
Drag the blue labels to the blue targets to indicate the effect on the polypeptide’s primary structure.
Labels may be used once, more than once, or not at all.
Attached file
Thumbnail(s):
Rated 5 / 5
Read 30590 times
4 Replies
Answer accepted by topic starter
wrote...
*
*
Posts: 1723
Credits: 9936
3 years ago
To view this post and more
You'll need to login or register
Attached file
Thumbnail(s):
a) Val
b) substitution
c) missense

d) Glu
e) substitution
f) silent

g) Stop
h) substitution
i) nonsense

b), e), and h) I'm not 100% sure on.  Don't really have enough information for me to tell if it's substitution or insertions (only 3 nucleotides), but they all look like substitutions to me.  The other 6 I'm sure about.
Pretty fly for a SciGuy
wrote...
3 years ago
Nice! All correct.
wrote...
*
*
3 years ago
Sweet!
Pretty fly for a SciGuy
wrote...
3 years ago
Thank you! So appreciate it
New Topic      
This topic is currently locked from adding new posts. Only administrators and moderators can reply. If you'd like to contribute to this topic, start a new thread and make reference to this one. Otherwise, contact a moderator for more options.

Control Panel

Post homework questions online and get free homework help from tutors.
There are currently 771 guests browsing and 34 members online. So far today, 738 students have registered.
Ask a Question Add Gallery Image Add New Term
Dictionary
Search Images
Free PubMed Mathematics Tools Arcade
Related Images
5155
0
06/28/11

2632
5
09/08/11

233
0
01/20/15