Answer:
The answer is actually B) Memory T. Memory T cells rapidly produce large numbers of effector T-cells when re-exposed to their antigens, which provides the immune system memory against past infections.
Answer:
RNA contains an additional oxygen atom on the ribose sugar. (Ans. C)
Explanation:
RNA contains a sugar which is known as ribose, and which contains an extra group of hydroxyl (OH-) while DNA contains deoxyribose sugar.
RNA contains four nitrogenous bases cytosine, adenine, guanine, and uracil, while DNA contains cytosine, adenine, guanine, and thymine.
Double helix means two stranded structure like DNA, while RNA is single stranded.
DNA molecule is much longer polymer than RNA molecule.
Answer:
The answer would be A, to lead sperm cells to the ovary. Hope this helps you out!
Answer:
The best way to approach this type of problem is to use the "complement method" ...
P(positive result) = 1 - P(negative result)
= 1 - (1 - 0.03)^3
= 1 - 0.97^3 = 0.087327 or 8.7%
Explanation:
