TLS Online TPP Program

#Question id: 4161


The link between an activated amino acid and tRNA is an __ bond between the __ of the amino acid and a hydroxyl group of the tRNA.

#Unit 3. Fundamental Processes
  1. ester; carboxylate group

  2. amide; carboxylate group

  3. amide; amino group

  4. imine; amino group

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TLS Online TPP Program

#Question id: 4082

#Unit 3. Fundamental Processes

Which of the following is (are) not involved in alternative splicing in eukaryotes?

TLS Online TPP Program

#Question id: 4083

#Unit 3. Fundamental Processes

Differential splicing of the Ca2+-activated K+ channel gene in ciliated neurons results in

a. hair cells with different response frequencies.

b. different channel isoforms.

c. channels that open at different calcium concentrations.

d. different channel mRNAs expressed in different cells.

TLS Online TPP Program

#Question id: 4084

#Unit 3. Fundamental Processes

The nuclear pore complex

a. is a large complex made of many different proteins.

b. is an octagonal, membrane-embedded structure with long filaments.

c. is required for transport of all molecules in or out of the nucleus.

d. binds to importin via FG-repeats.

e. hydrolyzes bound GTP to GDP

TLS Online TPP Program

#Question id: 4085

#Unit 3. Fundamental Processes

When TAT protein fails to bind to the TAR region of the HIV transcript, which of the following statements is (are) true?

TLS Online TPP Program

#Question id: 4086

#Unit 3. Fundamental Processes

RNA interference

a. utilizes antisense RNA.  

b. utilizes double-stranded RNA.

c. is used to silence expression of genes. 

d. utilizes short interfering RNAs.

TLS Online TPP Program

#Question id: 4087

#Unit 3. Fundamental Processes

Polyadenylation can promote translation

a. of the fragile-X gene. 

b. of stored oocyte mRNAs.

c. by allowing for greater interaction at the 5ยด end.

d. by allowing for greater interaction with translation initiation factors.