1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
frutty [35]
3 years ago
7

Suppose that a glutamine residue in the active site of an enzyme was mutated to alanine. As expected, the alanine mutant was ina

ctive, suggesting that the glutamine residue was critical to the catalytic mechanism. Which mutation is most likely to restore wild-type level of activity to the alanine mutant?
A to M

A to N

A to F

A to K

A to E
Biology
1 answer:
likoan [24]3 years ago
7 0

Answer:

A to N

Explanation:

Glutamine is an amino acid with a polar, uncharged side chain. The mutation to alanine, an amino acid with a non-polar side chain, completely affects the enzymatic activity. This makes sense considering the difference in the nature of both amino acids.

To restore the wild-type level of activity the alanine would have to mutate to another polar uncharged amino acid. Among the given options, only Asparagine (N) has a similar chemistry to Glutamine.

You might be interested in
What is true of post-transcriptional controls in a eukaryotic cell?
Scorpion4ik [409]

Answer:

✔ B) They can regulate the rate at which a molecule is translated

          ** is the correct answer **

Explanation:

*I repeated my answer to get the point reward lol*

5 0
2 years ago
Which of the following was most likely not present in creating the fatty acids of early Earths waters of the past?
mrs_skeptik [129]
I believe the first answer is #4 and the second is #1. Please correct me if I am wrong. 
4 0
3 years ago
If you subtract the atomic number from the weight, what is the interpretation of the answer? (e.g. 14-7=7; Think of a subatomic
viva [34]
If we subtract the atomic number from the weight, we get the number of neutrons in the particle. This is because protons and neutrons each have a weight of 1, while electrons are 0. And since the atomic number is also the number of protons in the atom, subtracting it from total weight gives us the number iif neutrons.
4 0
3 years ago
Which of the following maintains the patency (openness) of the trachea? a. surface tension of water b. surfactant production c.
Bad White [126]

Answer:

<em>The correct option is C) C-shaped cartilage rings </em>

Explanation:

The trachea is commonly known as the wind-pipe. The trachea can be described as about a 4 inch long passage from which the air travels into the bronchi and lungs. The pathway of the trachea is kept open by C- shaped cartilages which are lined all over in the trachea. The C-shaped cartilages protects as well as maintain the shape of the wind-pipe. The rigidity of the trachea arises from the C-shaped cartilages.

4 0
3 years ago
Which of these could define a hypothesis
statuscvo [17]

There is no choice? But if I was thinking it would be idk

8 0
3 years ago
Read 2 more answers
Other questions:
  • Bears and salmon have a predator-prey relationship. What would most likely happen to the bear population if the salmon populatio
    11·1 answer
  • Which of the following can not be broken down by any herbivores digestive system
    5·2 answers
  • How could a populations gene pool change overnight time?
    7·1 answer
  • Fertilizers,detergents, products made from petroleum, pesticides oil and gas are all examples of
    6·1 answer
  • Explain how xylem cells are adapted for their function.<br>​
    15·2 answers
  • 10) Why do viruses need living hosts, such as bacteria or eukaryote cells? A) The host cell is the source of food for the virus.
    11·1 answer
  • If a plant can’t root or has a poor root system it cannot be reproduced <br> True <br> False
    10·1 answer
  • When the moon's shadow covers part of the earth it is called
    7·2 answers
  • Question 8 (2 points)
    15·2 answers
  • Is an ionic bond more like a polar covalent bond or a non-polar covalent bond? Explain
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!