In the Kinyoun acid-fast staining method, ______ replaces _____ in the primary stain solution
a. increased phenol; heat
b. heat; increased phenol
c. mycolic acid; heat
d. carbolfuchsin; phenol
A
The Kinyoun method is one in which the heat step of the traditional acid-fast staining method is replaced by increased phenol.
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Albinism, lack of pigmentation in humans, results from an autosomal recessive gene. Two parents with normal pigmentation have an albino child. What is the probability that their next child will be a wild type girl?
A) 1/4 B) 0% C) 1/2 D) 3/4 E) 3/8
The leading and the lagging strands differ in that _____
A) the leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction B) the leading strand is synthesized by adding nucleotides to the end of the growing strand, and the lagging strand is synthesized by adding nucleotides to the end C) the lagging strand is synthesized continuously, whereas the leading strand is synthesized in short fragments that are ultimately stitched together D) the leading strand is synthesized at twice the rate of the lagging strand
We can tell from their structure that fatty acids are a good source of energy because of:
A. the high potential energy of the carboxylic acid group. B. the large number of carbon-carbon and carbon-hydrogen bonds they contain. C. their hydrophobic nature conferred by their chemical formula. D. their three-dimensional bonding structure. E. None of the answer options is correct.
Anti-A and anti-B antibodies are natural antibodies and are present at birth
Indicate whether this statement is true or false.