Cells know how to differentiate through a process called gene expression. It’s a specific combination of genes that are turned on and off.
Answer:
The correct answer is- C. double or single-stranded DNA or double or single-stranded RNA.
Explanation:
All the viruses are intracellular parasites which means they obtain their nutrition from their host. Viruses do not have cellular level of organization. They only have their nucleic acid which is surrounded by a protein coat called a capsid.
The nucleic acid in viruses can be of different types. It can be single or double-stranded DNA or single or double-stranded RNA. Their genome can be linear or circular. They inject their genetic material in their host and introduce it in the host genome. Therefore the correct answer is C.
The priority nursing intervention for this client is FOR THE NURSE TO TAKE CARE OF THE IMPAIRED GAS EXCHANGE.
Dyspnea is a medical condition in which the affected individuals have difficulty in breathing properly, that is, such individuals usually experience shortness of breath. Shortness of breath is one of the symptoms that are associated with heart failure. In the scenario given above, the first thing for the nurse to do is to ensure that the patient is breathing normally again, before setting out to take care of other things.
Answer:
The correct answer is D. maintain membrane fluidity through its disruption of fatty acid packing.
Explanation:
<u>Cholesterol</u> is a steroid lipid and is a constituent of biological membranes. It regulates the <em>fluidity</em> of the membrane (so, option C is not correct). Since cell membranes are composed of another type of lipids, the phospholipids, which form a bilayer, cholesterol distributes between the phospholipid tails and avoids these molecules pack each other forming rigid clusters. Thus, the option which better explains the effect is <em>D. maintain membrane fluidity through its disruption of fatty acid packing.</em>
