Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 4255
TLS Online TPP Program

#Question id: 4468

Major role of TRCF 

#Unit 3. Fundamental Processes

  1. It binds double-stranded DNA upstream of the polymerase without the ATPase motor to translocate along the DNA until it encounters the stalled RNA polymerase.

  2. The collision pushes polymerase forward, either allowing it to restart elongation or, more often, causing dissociation of the ternary complex of RNA polymerase, template DNA, and RNA transcript.

  3. This continues the transcription and makes way for repair enzymes and for another RNA polymerase.

  4. B and C

More Questions
TLS Online TPP Program

#Question id: 33524

#Unit 2. Cellular Organization

A. Only 1% of the human genome consists of exons.
B. The genes (exons plus introns) comprise 25% of the genome.
C. 60% of human genes are alternatively spliced.
D. Up to 80% of the alternative splices change protein sequence, so the human proteome has 50,000 to 60,000 members.

Find true and false statements
TLS Online TPP Program

#Question id: 33525

#Unit 2. Cellular Organization

The average human gene is 
TLS Online TPP Program

#Question id: 33526

#Unit 2. Cellular Organization

The number of protein-coding genes is less than the number of potential polypeptides that can result in several polypeptides from the same gene because of mechanisms 
A. alternative splicing
B. alternate promoter selection, 
C. alternate poly(A) site selection
D. Number of Introns in the gene
TLS Online TPP Program

#Question id: 33527

#Unit 2. Cellular Organization

Match the following
TLS Online TPP Program

#Question id: 33528

#Unit 2. Cellular Organization

The Y chromosome has 
TLS Online TPP Program

#Question id: 33529

#Unit 2. Cellular Organization

A. X and Y chromosomes have descended from a common, very ancient autosome pair. 
B. X and Y chromosomes have descended from different autosome. 
C. During evolution, the X chromosome has retained most of the original genes, whereas the Y chromosome has lost most of them.
D. During evolution, the X chromosome has lost most of them, whereas the Y chromosome has retained most of the original genes.

Which of the following is correct combination