TLS Online TPP Program

#Question id: 4949


What probably accounts for the switch to DNA-based genetic systems during the evolution of life on Earth?

#Unit 11. Evolution and Behavior
  1. DNA is chemically more stable and replicates with fewer errors (mutations) than RNA.

  2. Only DNA can replicate during cell division.

  3. RNA is too involved with translation of proteins and cannot provide multiple functions.

  4. DNA forms the rod-shaped chromosomes necessary for cell division.

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TLS Online TPP Program

#Question id: 10982

#Unit 7. System Physiology – Animal

If the S-A node discharges at 0.00 seconds, when will the action potential normally arrive at the epicardial surface at the base of the left ventricle?

TLS Online TPP Program

#Question id: 23466

#General Aptitude

Statement— Should new big industries be started in Mumbai?
Arguments—
I) Yes. It will create job opportunities.
II) No. It will further add to the pollution of the city.

TLS Online TPP Program

#Question id: 5352

#Unit 8. Inheritance Biology

Marriage occurs between individuals III-3 and III-6, what is the probability couple; son would be affected with the trait?

TLS Online TPP Program

#Question id: 422

#Unit 1. Molecules and their Interaction Relevant to Biology

The flow of material through a reaction pathway usually depends on ________.

TLS Online TPP Program

#Question id: 10363

#Unit 6. System Physiology – Plant

Free living nitrogen fixing takes place as shown in the following;

             TYPE                                                                                       N-FIXING GENERA

A) Cyanobacteria (blue-green algae)                                        i) Bacillus

B) Aerobic                                                                                     ii) Clostridium

C) Facultative                                                                              iii) Anabaena

D) Anaerobic nonphotosynthetic                                            iv) Rhodospirillum

E) Anaerobic photosynthetic                                                     v) Azospirillum

 Which of the following combination of free living nitrogen fixing bacteria is correct?