We can get past it sir

SAM is a methyl donor in the synthesis of

All of the above are correct

A simple system for information flow is composed of

three components : reception, transduction and

response. In multicellular organisms hormones play a role

in which phase?

Reception

Which of the following is an siRNA for eukaryotes?
a) ACUGAAUTCGGCTAAUUTCGGCUAT

b) ACUUAAUGCGCGCUAAUCGCCCGGG

c) ACUUAAUGCUAUAUAGACUAGCCUAGUCCGGCGAAUUAAACCGGGCACCUUU

d) ATCCGCGCTTATCGATCCGATTTAGCCGATTTA

a) ACUGAAUTCGGCTAAUUTCGGCUAT
Has Uracil and Thymine

Which of the following can sequence RNA fragments?

Northern Blotting

Which of the following is a synonymous codon with UCU?

A) AAU

B) UCA

C) GAU

D) AAA

B) UCA

Protein synthesis requires _____ high energy phosphate

bonds per peptide bond.

4

_______ are a group of molecules that mediate protein

folding.
A) Hsp 70s

B) Chaparonins

C) Docking protein

D) Both A and B are correct

E) All of the above are correct

D) Both A and B are correct

Eukaryotic mRNA stability involves

A) Reversible adenylation

B) The length of poly (A) tails

C) The binding of specific proteins to certain mRNA

sequences

D) The action of various nucleases

E) All of the above are correct

E) All of the above are correct

21. ________ provides the energy needed to move the ribosome

along the mRNA.

A) ATP

B) GTP

C) UTP

D) TTP

E) All of the above are correct

B) GTP

In eukaryotic translation the 40S complex binds the 60S

subunit to form the _______ initiation complex.

80S

The Shine-Dalgarno sequence is a

Prokaryotic mRNA sequence that binds 16S rRNA

of the small ribosomal subunit

__________ corrects replication proofreading errors.

Mismatch Repair

Topoisomerases

A) Join DNA strands together
B) Prevent tangling of DNA strands
C) Relieve torque in replicating DNA
D) Change the supercoiling of DNA
E) All of the above are correct

E) All of the above are correct

In the absence of its inducer the lac operon remains

repressed because of the binding of lac repressor to the _______.

Operator

Place the following steps of general recombination in

chronological order

i. DNA ligase seals the cut ends

ii A second series of DNA strand cuts occurs opposite the first crossover strands

iii Two homologus DNA molecules become paired

iv DNA polymerase fills any gaps and DNA ligase seals the cut strands

v Two of the DNA strands are cleaved

vi The two strand segments cross over

iii, v, vi, i, ii, iv

Many promoters for RNA polymerase II contain a consensus

sequence call the _______.

TATA box

DNA transposition can cause gene ______.

A) Duplication

B) Deletion

C) Transcription

D) Both A and B are correct

E) All of the above are correct

D) Both A and B are correct

DNA synthesis is called

Replication

The assortment of DNA sequences is called

Recombination

The initiation of transcription involves the binding of RNA polymerase to a specific sequence called a

Promoter

In translation initiation in bacteria, an initiation factor called IF2 performs a catalysis that is key to the completion of initiation. Which of the following reaction is this?

None of the above are correct

If the length of the resulting real-time PCR are identical use the melt curve data below to

predict which of the following peaks would correspond to the PCR product that has the highest

percentage of G-C base pairs in it.

Peak labeled B

Below is an image of which type of cellular signaling

Tyrosine Kinase receptor signaling

Cloning a promoter in front of luciferase and transfecting this newly created plasmid into a cell will enable a researcher to do which of the following.

Determine the status of transcription of the gene associated with the promoter is

Posttranslational modifications include all except

Removal of introns

A protein destined for insertion into the rough endoplasmic reticulum contains a sequence that instructs it to go there. This sequence is called a ______.

Signal Sequence

Eukaryotic mRNA stability involves
A) Reversible adenylation

B) The length of poly (A) tails

C) The binding of specific proteins to certain mRNA sequences

D) The action of various nucleases

E) All of the above are correct

E) All of the above are correct

Topoisomerases
) Join DNA strands together

B) Prevent tangling of DNA strands

C) Relieve torque in replicating DNA

D) Change the supercoiling of DNA

E) All of the above are correct

E) All of the above are correct

When v-snares and t-snares

pull together what is the result

of the membrane and proteins

involved?

Spontaneous fusion between the vesicle and the

plasma membrane occurs and results in delivery of

the protein contained in the vesicle to the outside.

Cloning a promoter in front of luciferase and transfecting this newly created plasmid into a

cell will enable a researcher to do which of the following.

Determine the status of transcription of the gene associated with the promoter is