TLS Online TPP Program

#Question id: 764


Which of the following is NOT correct about tRNA?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. Charging tRNAs with amino acids is mediated by aminoacyl-tRNA synthetases.

  2. tRNA contains a three-nucleotide sequence known as an anticodon.

  3. Some tRNAs can bind to more than one codon due to wobble base pairing in the second base of the codon.

  4. The match between tRNA anticodon and the mRNA codon ensures the fidelity of translation.

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TLS Online TPP Program

#Question id: 4405

#Unit 3. Fundamental Processes

Which of the following can occur when steroid hormone binds to its cognate receptor?

a. conformational changes in the receptor

b. translocation of the receptor out of the cell membrane

c. binding of the receptor to DNA response elements

d. stimulation of transcription

TLS Online TPP Program

#Question id: 4406

#Unit 3. Fundamental Processes

An electrophoretic mobility shift assay (EMSA) was conducted to check for the binding of TFIIB to a segment of a DNA promoter region. Which of the following approaches could be used to confirm that TFIIB is indeed binding?

TLS Online TPP Program

#Question id: 4407

#Unit 3. Fundamental Processes

The general transcriptional factors are used by all sets of RNA Polymerase. Which of the following GTF is/are commonly used by all RNA Polymerases?

A. TBP

B. TFIID

C. TFIIIC

D.TFIIE

E. TFIIH

TLS Online TPP Program

#Question id: 4408

#Unit 3. Fundamental Processes

an example/s of in vivo “molecular mimicry” is/are

I. EF-G–GDP and EF-Tu–GTP–tRNA

II. TAF42 -TAF62 and H3.H4 tetramer

III. Tyrosinyl-tRNA and Puromycin

TLS Online TPP Program

#Question id: 4409

#Unit 3. Fundamental Processes

The torpedo model of termination is

A. Degradation of the second RNA as it emerges from the RNA polymerase

B. It Involves Rat1/Xrn2 to degrade and dislodge the RNA Polymerase

C. Inhibition of second replication cycle as Mitotic cdkc is freed

D. It Involves APC/C cdh1 to Mitotic cdkc

TLS Online TPP Program

#Question id: 4410

#Unit 3. Fundamental Processes

A key component of the eukaryotic transcription machinery called TFIID includes a