I believe using gel electrophoresis to separate and identify plasmids and short linear pieces of DNA would be important if one is making a recombinant plasmid and has to verify that he/she has been successful. Gel electrophoresis is a technique that is used to separate mixtures of DNA, RNA, or proteins according to molecular size. The molecules being separated are pushed by an electrical field through a gel that contains small pores.
Answer:
Predation.
The archerfish preys on the insects for food. It is not competition because the insects and archerfish are not rivaling for territory or resources.
Answer:
The correct answer is Cromolyn sodium.
Explanation:
Allergy is the process which occurs when our immune cell misinterprets a harmless substance as a harmful agent. The symptoms occur when chemicals like histamine are released by mast cell in response to the allergen which causes inflammation, itchiness, redness, pain.
Cromolyn sodium is a drug which is also known as mast cell stabilizer which stops the allergic symptoms by inhibiting the mast cell to release histamine and other chemicals that cause information. Therefore the correct answer is cromolyn sodium.
