The answer is B because class of drugs known as expectorants.
If a restriction site is altered, a higher molecular weight band will be observed.
Restriction enzymes are proteins synthesized by bacteria to protect itself against foreign DNA. These enzymes cut DNA at specific places.
This enzyme is used to detect mutations in the genome, particularly those at the sites of action of these restriction enzymes. A healthy subject is compared with the patient who is supposed to have cystic fibrosis. If their DNA migration is different, it means that their DNA is different and that there is a mutation at the restriction sites.
<h3><u>Answer;</u></h3>
A skinner chamber
A <u>skinner chamber</u> is a chamber that isolates the subject from the external environment.
<h3><u>Explanation;</u></h3>
- A skinner chamber or skinner box an enclosed chamber which contains a bar or key that an animal can press or manipulate in order to obtain food or water as a type of reinforcement.
- <em><u>This box was used by Skinner in his experiments concerning Operant conditioning. From the experiments that he conducted he realized that the important part of any operant conditioning id recognizing the operant behavior and the outcome resulted in that particular environment.</u></em>
