Which of the following is a milestone prokaryotic transcription initiation?
a. polymerase synthesizing mRNA in the 5’ to 3’ direction
b. formation of a stable hairpin
c. opening of the transcription bubble
d. polymerase stalling in a region that is rich in A-T nucleotides
c. opening of the transcription bubble
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The septum in a fungus is
A. the seventh cellular division. B. the seventh nucleus in a dikaryote cell. C. the seventh cell from the tip of the hypha. D. the demarcation between the mycelium and the fruiting body. E. a cross wall that separates hyphae into cells.
Which is a step in hierarchical genome sequencing that is not found in shotgun genome sequencing?
A) fragment the genome B) construct a genomic library C) organize the clones based on their order in the genome D) sequence the ends of millions of clones E) assemble the sequences into contigs based on overlap
The somatic senses include all EXCEPT which
one of the following sensations? a. balance b. pain near the body surface c. temperature d. touch e. pressure
miRNAs, tRNAs, and rRNAs all _____________
(a) do not code for proteins. (b) act in the nucleus. (c) are packaged with other proteins to form RISC. (d) form base pairs with mRNA molecules.