Answer:
<h2>c. Migration distance on a gel is inversely proportional to DNA fragment size </h2>
Explanation:
- Deoxyribonucleic acid is a genetic material that is a type of macromolecule.
- It is made up of a monomer that ais called a nucleotide. Each nucleotide is made up of a deoxyribose sugar, a base, and a phosphate group.
- Due to the presence of phosphate group DNA has negative property. When the DNA is separated by the gel electrophoresis method the size of the fragment of the DNA plays an important role.
- Those DNA fragments that are small in size migrate faster than those DNA fragments that are larger in size.
- So the migration distance is inversely proportional to the DNA fragment size.
Ectopic focus or ectopic pacemaker happens when an excitable group of cells outside the normal sinoatrial node causes premature heartbeat. Sinoatrial node (SA node) is the pacemaker of the heart. Most people experience ectopic focus but persistent occurrence may need the client/patient to visit the doctor. If a client or patient complains of ectopic focus, it is better to consider his/her activity before visiting the clinic. Ask, for example if the client/patient had a vigorous exercise because it might be causing the irregular heartbeat, how often is he/she experiences such irregularity in his/her heartbeat (acute ectopic foci is usually non-life threatening, however, chronic type requires medical help), his/her lifestyle (he/she might be using illegal drugs, smokes and/or drinks alcohol,had too much coffee etc). Again, history taking is very vital.
Answer: Decreases
Explanation:
The amount of sodium in the blood will increase as the main function of the negative feedback is to maintain the homeostasis inside the body.
If blood pressure is too high, then heart rate decreases because of this the blood vessels increases in the diameter and the kidney retains less water.
These changes will return the blood pressure to be normal. The same process gets reversed when the blood pressure decreases.
The answer is CNS depression.
Reduced activity in the brain can be caused by chemical agents such as opioids, ethanol,
benzodiazepines, ethanol, and anticonvulsants. Metabolic issues such as hypoglycemia can also cause CNS depression or
accidental inhalation of chemicals such as isopropyl alcohol, or butanol.
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