TLS Online TPP Program

#Question id: 23654


How many recombinant clones must be present in a cDNA library to be 95% certain that the library contains one clone of a particular mRNA molecule representing 0.005% of the total mRNA? 

#Unit 13. Methods in Biology
  1. 5.9 x 103 
  2. 6 x 10
  3. 6 x 106 
  4. 5 x 105 
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TLS Online TPP Program

#Question id: 26536

#Unit 3. Fundamental Processes

TBP Binds to and Distorts DNA Using a b Sheet Inserted into the

TLS Online TPP Program

#Question id: 12124

#Unit 10. Ecological Principles

Which of the following describes the relationship between ants and acacia trees?

TLS Online TPP Program

#Question id: 28752

#Unit 2. Cellular Organization

Plasmalogens is analogous to_

TLS Online TPP Program

#Question id: 10185

#Unit 1. Molecules and their Interaction Relevant to Biology

When sphingolipid degradation is impaired by a defect in an enzymes, leads to partial breakdown products accumulate in the brain, spleen, and liver causing serious disease, known as Niemann-Pick disease. Such condition occurs due to a specific defect in

TLS Online TPP Program

#Question id: 11844

#Unit 6. System Physiology – Plant

The following statements are made to describe the biosynthetic pathway of IAA;

a)  IPA pathway involves a deamination reaction to form IPA, followed by a decarboxylation reaction to form indole-3-acetaldehyde (IAld) and then oxidized to IAA by a specific dehydrogenase

b) IAN pathway is similar to the IPA pathway, except that the order of the deamination and decarboxylation reactions is reversed, and different enzymes are involved

c) IAM pathway  involves the two enzymes  tryptophan monooxygenase and IAM hydrolase

d) In the IAN pathway, tryptophan is first converted to indole-3-acetaldoxime and then to indole-3-acetonitrile. The enzyme that converts IAN to IAA is called nitrilase

Which of the following is the correct  statements  of about the biosynthesis of  IAA?