Answer:
B. The Universe may continue to expand
Explanation:
nucleus
is the power house of a cell
Answer:
The correct answer will be option-D
Explanation:
RNA or ribonucleic acid is the nucleic acid which was formed in the primordial time. The RNA molecule acts as an enzyme called ribozyme and also acts as the genetic material of a few viruses.
The RNA is composed of nucleotide monomer where each nucleotide is made of a ribose sugar, a phosphate group and the nitrogenous base adenine, uracil, cytosine and guanine.
Thus, option-D is the correct answer.
Since viruses are nonliving, they will need a host in order to take over and spread. Thus, viruses need help in order to reproduce. However on the other hand, Prions are also NON-living but they do not reproduce, they are protein that are not folded properly and continue to create those badly folded proteins to alter the cell.
When two different forms of a virus infect the same cell, the host cell may manufacture viral particles by a process called antigenic shift.
<h3>What is an antigen?</h3>
An antigen is any molecule or molecular structure that may trigger a suitable immune response in the host.
An antigen can be the target for antibody binding during classical adaptive immune responses.
In conclusion, when two different forms of a virus infect the same cell, the host cell may manufacture viral particles by a process called antigenic shift.
Learn more about antigen response here:
brainly.com/question/7597406
#SPJ1
