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TLS Online TPP Program

#Question id: 978

Which is a common precursor in the de novo synthesis of purine nucleotides?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. inosine 5ʹ-monophosphate

  2. xanthosine monophosphate

  3. orotate   

  4. adenylosuccinate

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TLS Online TPP Program

#Question id: 19986

#Unit 2. Cellular Organization

Which of the following can be illustrated by C - value
a) Intron position 
b) position on evolutionary tree
c) evolutionary status of organism
d) exon position 
TLS Online TPP Program

#Question id: 33277

#Unit 2. Cellular Organization

Which of the following kinesins are called chromokinesins, which are plus end–directed motors that associate with chromosome arms and push the attached chromosome away from the pole?
TLS Online TPP Program

#Question id: 10997

#Unit 7. System Physiology – Animal

A 60-year-old woman has a resting heart rate of 70 beats/min, arterial pressure is 130/85 mm Hg, and body temperature is normal. Her pressure-volume diagram of the left ventricle is shown above.


What is her cardiac output in milliliters per minute?
TLS Online TPP Program

#Question id: 3982

#Unit 3. Fundamental Processes

The diagram below represents a hypothetical operon in the bacterium E. coli.  The operon consists of two structural genes (A and B) that code for the enzymes A-ase and B-ase, respectively, and also includes P (promoter) and O (operator) regions as shown.

 When a certain compound (X) is added to the growth medium of E. coli, the separate enzymes A-ase and B-ase are both synthesized at a 50-fold higher rate than in the absence of X (which has a molecular weight of about 200).  Which one of the following statements is true of such an operon?
TLS Online TPP Program

#Question id: 12500

#Unit 8. Inheritance Biology

In this pedigree II 1 is affected with an autosomal recessive disorder. The disease status for II 2, II 3 and II 4 is unknown. A and B represent alleles at a locus which is tightly linked to the disease locus with recombination fraction of 0. On the basis of the linked markers II 2 can be told that: