The genome sequence of Treponema pallidum ________.
A. should ultimately help us understand the mechanism by which this organism causes syphilis
B. has led us to be able to completely eradicate this organism
C. identified proteins that have already been used to produce the first successful vaccine for syphilis
D. almost immediately provided explanations for how this organism causes syphilis
Answer: A
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What information is critical to the success of polymerase chain reaction (PCR) itself?
A) The DNA sequence of the ends of the DNA to be amplified must be known. B) The complete DNA sequence of the DNA to be amplified must be known. C) The sequence of restriction-enzyme recognition sites in the DNA to be amplified must be known. D) The sequence of restriction-enzyme recognition sites in the DNA to be amplified and in the plasmid where the amplified DNA fragment will be cloned must be known.
) ________ are a class of enzymes responsible for the movement of functional groups from one molecule to another.
Fill in the blank(s) with the appropriate word(s).
The image shown above is an example of a(n) ____
a. random coil b. leucine zipper c. ? sheet d. ? helix e. ? polysaccharide
Which phase comes immediately after cleavage?
a. fertilization b. organ formation c. gastrulation d. gamete formation e. tissue specialization