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
GarryVolchara [31]
3 years ago
13

You experimentally change the DNA sequence directly upstream of a start codon of an operon in E coli to investigate the function

of this region of DNA. Analysis reveals that after the change the same amount of mRNA is made from the operon, but there are very few proteins made from the operon. What is the most likely function of the DNA sequence that you changed?
Biology
1 answer:
Phoenix [80]3 years ago
8 0

Answer:

Mutation occurred in ribosome binding site that serves as binding site for 30S ribosomal subunit of <em>E. coli</em> and allows the process of protein synthesis to begin.

Explanation:

The initiation of protein synthesis in bacteria requires binding of the ribosome to the ribosome binding site. The ribosome binding site in bacteria consists of the initiation codon "AUG" and the preceding Shine-Dalgarno sequence. The AUG initiation codon and Shine Delgrano sequence are around 10 bases apart.

The sequence is polypurine hexamer and is represented by 5' ...AGGAGG...3'. Shine-Delgrano sequence is complementary to the conserved sequence present at the 3' end of 16SrRNA of the 30S subunit of the bacterial ribosome. Binding of Shine Delgrano sequence of ribosome binding site and the complementary sequence of the 30S ribosomal subunit marks the first step in the initiation of protein synthesis.

Any mutation in the ribosome binding site would not allow the process of protein synthesis to start or would reduce the rate of the initiation of protein synthesis.

You might be interested in
Enzymes (blank) chemical reactions. <br><br> -Speed up<br><br> -Don’t change<br><br> -Slow down
sesenic [268]

Answer:

Speed up

Explanation:

7 0
3 years ago
Read 2 more answers
Celeste is in the end stages of alzheimer's disease. during her final days of life, celeste will
love history [14]
<span>During the final days of her life, Celeste will likely be in more much pain, and it will be more difficult to control. She will likely not be able to move around on her own, or even speak. She will have difficulty swallowing, and may not be able to eat. Celeste will need help with basically all of her self-care, and activities of daily living.</span>
5 0
3 years ago
The correct chemical formula for magnesium sulfide is
ehidna [41]
The answer is C) MgS
4 0
3 years ago
The DNA sequence of a gene changed from AACTTG to AACATG. What kind of mutation occurred?
Katena32 [7]
Insertion mutation takes the T out and replaces it with an A. 
7 0
3 years ago
Read 2 more answers
In class we also talked about the metabolism of HDL particles.
zhuklara [117]

Answer:

Explanation:

The basis for the inverse relationship between number of matured HDL in circulation and and cardiovascular disease is that when new HDL entertainment circulation they mature by picking up extra cholesterol until they become mature and high cholesterol level is a major cause of cardiovascular disease and atherosclerosis. The implication of this is that the more the number of matured HDL in circulation, the lower the cholesterol level in the blood thus the lower the risk of cardiovascular disease and atherosclerosis.

3 0
3 years ago
Other questions:
  • How has cell technology most likely benefited the commercial flower industry
    8·1 answer
  • What evidence did Mendel find that supported his law of independent assortment?
    10·1 answer
  • All instructions for formatting characteristics (proteins)are carried on ...
    5·1 answer
  • DNA helicase and DNA polymerase are alike in that both are...?
    14·1 answer
  • Hurry due in 5 min plz help for test
    11·2 answers
  • Who is the longest living person on earth
    12·2 answers
  • Three cells that each has a diploid number of 32 go through meiosis. How
    7·1 answer
  • Being able to understand the relationship between DNA, mRNA, tRNA, ribosomes and proteins, is necessary for any researcher inter
    12·1 answer
  • Some species of hares are brown most of the year, but change color to white in the winter. This allows them to blend in
    14·1 answer
  • Why is it important to maintain the ph of blood and tissue fluids within normal limits?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!