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>
Answer:
The correct answer is the letter D. decreasing the moisture content of the air and increasing temperature
Explanation:
Fog is the result of air humidity, or water vapor in the atmosphere. The mist that forms in the morning is the result of water that changes from a gaseous to a liquid state. It is characterized by a cluster of water droplets, which give rise to a type of cloud that is very close to the Earth's surface arising from the cooling of the air during the night. Thus, it is formed by the suspension of water droplets in an air layer close to the ground. Thus, fog can be considered a cloud that comes into contact with the ground.
B creates a disturbance called an electromagnetic wave
Answer:
The first one is in metaphase
Explanation:
