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TLS Online TPP Program

#Question id: 3826

Which scientists first gave experimental evidence that DNA is the genetic material?

#Unit 3. Fundamental Processes

  1. Avery, MacLeod, and McCarty who repeated the transformation experiments of Griffith, and chemically characterized the transforming principle.

  2. Garrod, who postulated that Alkaptonuria, or black urine disease, was due to a defective enzyme.

  3. Beadle and Tatum, who used a mutational and biochemical analysis of the bread mold Neurospora to establish a direct link between genes and enzymes.

  4. Meselson and Stahl who showed that DNA is replicated semi conservatively.

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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.
TLS Online TPP Program

#Question id: 26531

#Unit 3. Fundamental Processes

TATA less, Inr Less promoters uses ……….as activator to position TBP with TAFs
TLS Online TPP Program

#Question id: 26532

#Unit 3. Fundamental Processes

Sp1 (Mr  80,000) is a transcription activator for a large number of genes in higher eukaryotes. Its DNA binding site, the GC box having consensus sequence
TLS Online TPP Program

#Question id: 26533

#Unit 3. Fundamental Processes

Which of the following is incorrect about Sp1