Exam 15: Eukaryotic and Archaeal Genome Replication and Expression

Proteins that recognize unfolded polypeptides and help them fold into their proper conformations are called ______________.

RNA polymerase III of eukaryotes is responsible for transcribing

The Archaea do not use __________ as a mechanism for reproduction.

Which of the following is not true about archaeal ribosomes?

The transcribed,but not translated,sequence that is immediately upstream of the region that encodes the functional product is called the __________ region.

Eukaryotic mRNAs are modified by addition of a poly(A)sequences at the 3' end and 7-methyl guanosine at the 5' end.

The genetic code is said to be __________ because more than one codon will specify a particular amino acid.

In eukaryotes a so-called cap consisting of __________ is attached to the 5' end of the molecule during posttranscriptional modification of hnRNA to produce functional mRNA.

The region at which the RNA polymerase binds is the __________ region.

In order to add a single amino acid to a growing polypeptide chain,a grand total of __________ molecules or ATP or GTP are utilized.

A bacterial __________ is the nontranscribed region of the DNA to which RNA polymerase binds in order to initiate transcription.

In eukaryotes a series of __________ residues are added to the 3' end of an RNA molecule as part of the posttranscriptional processing used to produce functional mRNA.

When a DNA molecule is replicated,the daughter molecules contain one strand of parental DNA and one strand of newly synthesized DNA; this is called __________ replication.

Each chromosome has one or more __________ site(s)where replication begins.

Ribosomes consist of __________ separate subunits that come together as part of the initiation process and dissociate immediately after termination.

________ molecules deliver amino acids to ribosomes during translation.

Aminoacyl-tRNA synthetases catalyze covalent addition of __________ __________ to tRNAs.

Unlike other prokaryotes,archaeons (except Sulfolobus)have two origins of replication.

The chromosomes of most bacteria are comprised of