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
Zepler [3.9K]
3 years ago
6

When the amino acid sequences of insulin isolated from different organisms were determined, some differences were noted. For exa

mple, alanine was substituted for threonine, serine was substituted for glycine, and valine was substituted for isoleucine at corresponding positions in the protein.
Which of the following single base changes would result in alanine being substituted for threonine?
A) A changed to C in the third position of the codon.
B) C changed to G in the second position of the codon.
C) A changed to G in the first position of the codon.

Biology
1 answer:
amid [387]3 years ago
5 0

Answer:

C) A changed to G in the first position of the codon.

Explanation:

In the translation of DNA,  triplets  or codons of mRNA  (a group of three nucleotides) are read according to a genetic code, to build proteins.

Proteins are composed of amino acids. In the translation process, each codon codes for an particular amino acid according to the  genetic code as illustrated  in the DNA codon table (attached here).  

In this table we can see that if the first position  of any of the codons coding for Threonine ( ACT, ACC, ACA, ACG) is changed for G, Adenine is going to be encoded instead of threonine.

You might be interested in
What are two adaptations that enable mammals to survive cold winters
natka813 [3]
The answer is <span>Hibernation and thick fu</span>r, i used my prior knowledge to ANswer this Question
4 0
3 years ago
Which feature on microscope did Anton van Leeuwenhoek add that enabled him to magnify organisms about 250 times?
Sauron [17]

Answer:

D

Explanation:

3 0
3 years ago
Read 2 more answers
Why do people always use drugs
ipn [44]

Answer:

I have been around it my whole life people just get addicted. Its like this game that you realy love so you play it over and over again.

Explanation:

4 0
3 years ago
Trees obtain carbon from _______. a. decaying organisms b. sunlight c. the atmosphere d. none of the above Please select the bes
Marysya12 [62]

Answer:

C

Explanation:

Trees take up carbon dioxide from the atmosphere and reduce to make carbohydrates. This  is powered by the energy of the sun that is taped by chlorophyll pigments during photosynthesis. The energy is used to split water molecules into H+ and O2-. Then the following chemical reaction ensues;

6CO2 + 6H2O ------> C6H12O6 + 6O2

4 0
3 years ago
Read 2 more answers
Define autotrophs, heterotrophs, producers, and photoautotrophs.
sergey [27]
Producers: living things that make their own food through a process called photosynthesis

Autotrophs: an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

Heterotrophs: an organism deriving its nutritional requirements from complex organic substances.

Photo autotrophs: organisms that carry out photosynthesis. Using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.
3 0
3 years ago
Other questions:
  • A doctor is trying to diagnose a patient with dry skin. Which of the following resources would be the most helpful?
    5·2 answers
  • The nuclear basket protein complex is a component of the
    12·1 answer
  • Which of the following statements about the classification of organisms are correct?
    8·2 answers
  • An adaption that allows a species to resemble another species is called a what?
    11·2 answers
  • Find the ratio in simplest form.<br> 30:6<br><br> 1:5<br> 4:1<br> 5:1
    14·1 answer
  • Water changes from a gas to a liquid phase
    5·2 answers
  • What polysaccharide provides rigidity and strength in plants? Brainliest and 10 points Glycogen Starch Cellulose Chitin
    13·1 answer
  • What happens when a force is applied to two surfaces in contact
    9·1 answer
  • Describe the characteristics and classification of seedless vascular and nonvascular plants
    6·1 answer
  • The directional term that means closest to the point of attachment to the trunk is.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!