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TLS Online TPP Program

#Question id: 12937

Choose the incorrect statement about Yeast Artificial Chromosome vectors.

#Unit 13. Methods in Biology
  1. They are linear molecule composed of a centromere,telomeres and a replication origin termed ARS element.
  2. It is digested with restriction enzymes at the SUP4 and Bam HI sites separating the telomere sequences.
  3. It produces four arms and the foreign genomic DNA is fragmented.
  4. They are replicated in yeast cells and the external cell wall of the yeast needs to be removed to leave a spheroplast.
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TLS Online TPP Program

#Question id: 18940

#Unit 13. Methods in Biology

which of the following permits the amplification of chosen segments of DNA or RNA for detailed study or cloning.
TLS Online TPP Program

#Question id: 33899

#Unit 2. Cellular Organization

A. In E.coli, a natural closed DNA that is negatively supercoiled.
B. The intercalation of ethidium bromide first removes the negative supercoils and then introduces positive supercoils.
TLS Online TPP Program

#Question id: 30052

#Unit 7. System Physiology – Animal

Which of the following channels opening contribute to the repolarization of the ventricular muscle fibers?
TLS Online TPP Program

#Question id: 14813

#Unit 4. Cell Communication and Cell Signaling

Given following  properties of immunogen which causes  immunogenicity, except?
TLS Online TPP Program

#Question id: 31111

#Unit 2. Cellular Organization

Arp2/3 needs to be activated by interacting with a nucleation promoting factor (NPF). Although there are many different NPFs, The major NPF family is characterized by the presence of a region called: