Transcription factors include
a. activators and repressors.
b. repressors.
c. activators, repressors, and enhancers.
d. activators, repressors, and translational factors.
e. enhancers and repressors
ANSWER: c
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The most common causative agent of otitis media is ________.
A. Aspergillus fumigatus B. Streptococcus pneumoniae C. Candida albicans D. Haemophilus influenzae E. Corynebacterium diphtheriae
What benefit does group aggregation provide? a. All of these choices
b. Shelter during low tide. c. Protection from desiccation. d. Protection from wave stress.
Which of the following is a correct statement about sympatric or allopatric speciation?
a) Polyploidy is a type of sympatric speciation. b) Sympatric speciation might occur if a body of water shrinks, leaving the fish isolated in separate smaller ponds. c) Allopolyploidy is a type of allopatric speciation. d) Allopatric speciation can be called "speciation without geographic isolation." e) Allopatric speciation may occur as long as two populations have the same geographical range.
The activity of ________ would be quickly undone in the absence of single-stranded binding protein
A) DNA helicase B) DNA ligase C) DNA polymerase III D) primase E) DNA polymerase I