Which of the following uses dsRNA as the genome?
A. Poxvirus
B. Rotavirus
C. Parvovirus
D. Bunyavirus
Answer: B
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What molecular mechanism/feature does site-directed mutagenesis exploit to introduce a mutation at a specific site?
A) flanking complementary bound nucleotides permit non-complementary base pairing B) methylated nucleotides disrupt DNA polymerase's proofreading C) nucleotide substitution when one is depleted D) transposase-induced base pair changes
Which of the following events occurs during prophase I?
a. one full set of chromosomes arrives at each spindle pole b. crossing over c. spindle microtubules connect chromosomes to spindle poles d. separation of sister chromatids
Which term refers to the place on a stem where one or more leaves are attached?
a. node b. internode c. lateral bud d. axil
Which mathematical symbol represents the carrying capacity of a population?
A) K
B) r
C) J
D) S