TLS Online TPP Program

#Question id: 4134


The enzyme that attaches an amino acid to a tRNA (aminoacyl-tRNA synthetase):

#Unit 3. Fundamental Processes
  1. always recognizes only one specific tRNA.

  2. attaches a specific amino acid to any available tRNA species.

  3. attaches the amino acid at the 5' end of the tRNA.

  4. catalyzes formation of an ester bond.

More Questions
TLS Online TPP Program

#Question id: 4497

#Unit 3. Fundamental Processes

Elongation, termination of transcription, and RNA processing are interconnected, presumably to ensure their proper coordination,

   Elongation factors

I.    hSPT5

To recruit the 5’ -capping enzyme to the CTD tail of polymerase

 II.   TAT-SF1

To recruits components of the splicing machinery to polymerase with a Ser-2 phosphorylated tail

TLS Online TPP Program

#Question id: 7234

#Unit 5. Developmental Biology

Studies from the sea urchin developmental biology, Eric Davidson’s group envisions a network involving cis regulatory elements (such as promoters and enhancers) in a logic circuit connected to one another by transcription factors. Following statements are given regarding to this network.

A. The network receives its first inputs from transcription factors in the egg cytoplasm.

B. The network self-assembles from the ability of the maternal transcription factors to recognize cis-regulatory elements of particular genes that encode other transcription factors.

C. The new set of transcription factors activate autocrine signaling pathways that activate specific transcription factors in neighboring cells.

D. This network of interconnections among genes that specify cell types known as a gene regulatory network (GRN).

Which of the following statements are correct?

TLS Online TPP Program

#Question id: 24593

#Unit 2. Cellular Organization

Performing the electrophoresis which of the following will highest mobility

TLS Online TPP Program

#Question id: 31097

#Unit 4. Cell Communication and Cell Signaling

The protein that senses Ca+2 depletion in the ER is called:

TLS Online TPP Program

#Question id: 8930

#Unit 9. Diversity of Life Forms

Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the