Exam 11: Gene Expression: From Transcription to Translation

With what protein does the double-stranded miRNA become associated? The RNA duplex then is disassembled and one of the single strands is incorporated into a RISC complex.

Based on the interchangeability of the nucleotide at the third position, Francis Crick proposed that the same tRNA may be able to recognize more than one codon. What was his proposal called?

Another name for protein synthesis is _________.

How would you describe the arrangement of the 5S rRNA genes?

How is the RISC directed to the target mRNA that it is destined to destroy?

The nucleotide at which transcription is initiated is called _____.

What appears to be the role of siRNA in destroying the target mRNA upon which it and its associated proteins act?

Mammalian oocytes have recently been shown to produce siRNAs. What are they called?

Why are general transcription factors (GTFs)referred to as "general?"

What evidence shows that the genetic code is not overlapping?

A tRNA has an anticodon with the sequence 3'-UAC-5'. What would be the sequence of the complementary codon?

RNA polymerase is a processive enzyme which means that

The reverse reaction of nucleic acid synthesis almost never happens. What prevents it?

Which amino acid can be converted to selenocysteine after its attachment to its tRNA?

Which is always the first amino acid incorporated at the N-terminus of a nascent polypeptide chain?

How many codons code for an amino acid?

Which of the following is NOT a normal property of eukaryotic mRNAs?

Which event is considered to be non-cell autonomous?

As life was first evolving, what molecule is thought to have performed double duty as the genetic material and catalyst of chemical reactions?

In mammalian cells employed in pulse-chase experiments, radiolabeled methyl groups appear first in which size RNA molecule that is a precursor to rRNA?