Although many viruses can cause meningitis, the most common viral cause is ________.
A. arenavirus
B. enterovirus
C. arbovirus
D. herpes simplex
E. cytomegalovirus
Answer: B
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Which objective would be best to use a Southern blot rather than a Northern blot?
A) Determine if a gene is present in a genome. B) Discover gene function. C) Identify regulatory gene-protein interactions. D) Quantify expression profiles of a gene.
What is one way in which plant development differs from animal development?
A. Plants can develop only from somatic cells B. Plants lack morphogens C. Cell migration occurs in plants
During in vitro fertilization, the fertilized egg ____
a. is enucleated and fused with a donor egg b. develops in a Petri dish to form an embryo containing 64 to 128 cells c. develops in a Petri dish to form an embryo containing four to eight cells d. develops in the host animal and eventually results in a clone born to the host e. undergoes a second fertilization with a donor animal's sperm
Answer the following statements true (T) or false (F)
1. DNA helicase and topoisomerase are similar insofar as they promote the unwinding and uncoiling of DNA. 2. If the sequence for one strand of DNA is 3?-TCGATT-5? then its complementary strand would have a sequence of 3?-AGCTAA-5?. 3. Okazaki fragments are sequences of DNA most often found on the lagging strand of DNA during DNA replication. 4. The progressive shortening of telomeres in DNA correlates with cell senescence.