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
Fantom [35]
3 years ago
6

Can someone explain the process of RNA editing?

Biology
1 answer:
Talja [164]3 years ago
8 0
The process of RNA editing is the alteration of the sequence of nucleotides in the RNA after it has been transcribed from DNA, but before it is translated into a protein. RNA editing occurs by two distinct mechanisms:<em><u /><u>Substitution</u> <u>editing </u></em>and <u><em>Insertion/</em></u><em></em><u><em>deletion</em></u><em> <u>editing</u></em>.

<u><em>Substitution editing</em></u> is the chemical alteration of individual nucleotides. These alterations are catalyzed by enzymes that recognize a specific target sequence of nucleotides:

*Cytidine Deaminases that convert a C in the RNA to uracil.

*<em />adenosine deaminases that convert an A to inosine,which the ribosome translates as a G.<span>Thus a CAG codon</span><span> (for Gln) can be converted to a CGG codon (for Arg).

<em><u>*Insertion/deletion editing</u></em><em><u /></em><u /> is the insertion or deletion of nucleotides in an RNA.

These alterations are mediated by guide RNA molecules that base-pair as best they can with the RNA to be edited and serve as a template for the addition( or removal) in the target.</span>
You might be interested in
A thick mass of tough roots called loess kept the fertile soil of the prairies in place and held on to moisture.
Annette [7]
The answer is f it's not true
4 0
3 years ago
Cyclin B1, a key cell cycle regulatory protein in vertebrates, is mostly cytosolic before mitosis. Early in mitosis, however, th
Ludmilka [50]

Answer:

Phosphorylation within the nuclear export signal interferes with the function of the  signal.

Explanation:

In biochemistry, phosphorylation is the addition of a phosphate group (PO4) to a protein or other molecule. Phosphorylation is a major player in protein regulation mechanisms, preventing protein-catalyzed reaction product from accumulating in the body causing problems.

However, in some cases phosphorylation may cause nuclear accumulation of a protein in the nucleus of the cell. An example of this is the protein shown in the question above. In this case, phosphorylation in the nuclear export signal interferes with the signal function, resulting in protein accumulation in the nucleus.

4 0
3 years ago
Exposure to teratogens after organogenesis is complete may most likely result in select one:
Ivenika [448]

The teratogens can be defined as any physical, chemical, or infections agents that have the ability to penetrate the protective layers of the embryo, and affect its viability. The overall development and the development of the different organ systems might be affected because of these teratogens. When the embryo is exposed to the teratogens after the organogenesis is complete, it is most likely that the fetus will suffer from the stunted growth. When the organogenesis is complete, the organs are already formed, and hence, no severe damage can occur to them. Down's syndrome will result if the chromosomal abnormality occur in the fetus, which is not likely after the organogenesis is already complete. Any kind of severe anatomical defects are also least likely after organogenesis is completed. Therefore, the chances of having stunted growth are high.

7 0
3 years ago
Which best demonstrates something scientists across all scientific disciplines share?
alex41 [277]

Answer:

B) detailed record keeping

Explanation:

I just took this test and this was the correct answer.

8 0
3 years ago
Which part of a sperm cell is responsible for housing the genetic information
babymother [125]
The head at the top, the tail is just for getting to the egg
8 0
3 years ago
Other questions:
  • QUESTION 1<br> You want to start a Word document. Which of the following is the BEST first step?
    6·1 answer
  • The structure of allyl dimethyldithiocarbamate is shown here. Indicate the type of hybridization for each numbered atom.
    10·1 answer
  • How are cells able to produce the proteins required by certain conditions?
    15·1 answer
  • Each of the following is a main idea of the cell theory except
    9·1 answer
  • What is a cell membrane
    7·2 answers
  • A television advertisement claims that a certain brand of cough drop reduces coughing for 8 hours. Describe an investigation tha
    15·1 answer
  • The graph shows the populations of two species in a particular region over two decades. Based on the graph, what can you conclud
    5·1 answer
  • Cuanto dedos hay en el ser humano
    7·1 answer
  • Which of the following countries currently contributes the most lumber to the international market?
    9·1 answer
  • What is the smallest particle of any substance that has all the properties of that substance?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!