<span>Here is the correct option: 'Manatees needs only a few things to survive up to age 60: enough food and to be left alone'. In writing, a colon usually precedes an explanation. Colons are used in English writing to introduce a list of items. In the given example, colon was used to list the needs of Manatees.</span>
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 - checkpoints.
Explanation:
In the cell cycles, there are different stages, and before every stage are monitored by the internal controls known as checkpoints. These checkpoints monitored the errors. Checkpoints are present in 1st the end of G1, a 2nd at the G2/M transition, and the 3rd during the metaphase of the cell cycle.
The most important checkpoint is at the end of G1 which decides that cell will go in the division or not.
The answer is C The enzyme lowers the energy of activation for the reaction. The amount of free energy produced in the reaction increased with an enzyme. Energy of
Activation
Free energy
<span>Homologous chromosomes pair up and form tetrad during what phase in meiosis
Prophase 1 would be the phase that this would happen in meiosis.</span>
