TLS Online TPP Program

#Question id: 339


The edges of each base pair are exposed in the major and minor grooves, creating a pattern of hydrogen-bond donors and acceptors and of hydrophobic groups (allowing for Vander Waals interactions) that identifies the base pair. The edge of an C : G base pair displays the following chemical groups in the following order in the major groove:

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. A hydrogen-bond acceptor (at N7 of guanine), a hydrogen-bond acceptor (the carbonyl on C6 of guanine), a hydrogen-bond donor (the exocyclic amino group on C3 of cytosine), and a small nonpolar hydrogen (the hydrogen at C5 of cytosine)

  2. A hydrogen-bond acceptor (at N7 of guanine), a hydrogen-bond acceptor (the carbonyl on C6 of guanine), a hydrogen-bond donor (the exocyclic amino group on C4 of cytosine), and a small nonpolar hydrogen (the hydrogen at C5 of cytosine)

  3. A small nonpolar hydrogen (the hydrogen at C5 of cytosine), a hydrogen-bond donor (the exocyclic amino group on C4 of cytosine), a hydrogen-bond acceptor (the carbonyl on C6 of guanine) and a hydrogen-bond acceptor (at N7 of guanine)

  4. A small nonpolar hydrogen (the hydrogen at C5 of cytosine), a hydrogen-bond acceptor (the exocyclic amino group on C4 of cytosine), a hydrogen-bond acceptor (the carbonyl on C6 of guanine) and a hydrogen-bond donor (at N7 of guanine)

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TLS Online TPP Program

#Question id: 26525

#Unit 3. Fundamental Processes

The CTD contains a series of repeats of the heptapeptide sequence: Tyr-Ser-Pro-Thr-Ser-Pro-Ser. In which

TLS Online TPP Program

#Question id: 26526

#Unit 3. Fundamental Processes

YSPTSPS repeats in CTD corresponds to the complexity of the genome. Which of the is correctly  representing the complexity(x-axis) vs no of repeat (y-axis)



TLS Online TPP Program

#Question id: 26527

#Unit 3. Fundamental Processes

Which of the protein is essential for RNA pol I based transcription

TLS Online TPP Program

#Question id: 26528

#Unit 3. Fundamental Processes

Which of the following statement is true regarding RNA polymerase III
1.RNA polymerase III transcribes a set of short genes
2.The classical class III genes (types I and II) have promoters that lie wholly within the genes.
3.Box A and Box B is the characteristics of RNA polymerase III type II
4.Box A and Box B is the characteristics of RNA polymerase III type I

TLS Online TPP Program

#Question id: 26529

#Unit 3. Fundamental Processes

RNA Polymerase III promoters are bipartite, which of the following is correctly representing the binding transcriptional factor with their location

TLS Online TPP Program

#Question id: 26530

#Unit 3. Fundamental Processes

Which of the following statement is correct
1.Start point, is the first base of mRNA to be A
2.Initiator (Inr) is Py2CAPy5, where Py stands for any pyrimidine. The Inr is contained between positions -3 and +5.
3.TATA box, usually located, 25 bp upstream in its location at -25 in eukaryotes 
4.The exception is in yeast, where the TATA box is more typically found at -90.