TLS Online TPP Program

#Question id: 601


In a ping-pong reaction which does not occur?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. One product is released before a second substrate is bound.

  2. The enzyme covalently binds a portion of the first substrate.

  3. The enzyme is permanently converted to an altered form by the first substrate.

  4. A group is transferred from one substrate to another.

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TLS Online TPP Program

#Question id: 17264

#Unit 11. Evolution and Behavior

The strata of sedimentary rocks in the different regions of the world, have classified geologic history into eras;

Column IColumn II
P. Archeozoici) era of medieval life
Q. Proterozoicii) era of ancient life
R. Paleozoiciii) era of primitive life
S. Mesozoiciv) era of modern life
T. Cenozoicv) era of early life
Match the following;

TLS Online TPP Program

#Question id: 5032

#Unit 11. Evolution and Behavior

There is still some controversy among biologists about whether Neanderthals should be placed within the same species as modern humans, or into a separate species of their own. Most DNA sequence data analyzed so far indicate that there was probably little or no gene flow between Neanderthals and Homo sapiens. Which species concept is most applicable in this example?

TLS Online TPP Program

#Question id: 5016

#Unit 11. Evolution and Behavior

Approximately how far back in time does the fossil record extend?

TLS Online TPP Program

#Question id: 5013

#Unit 11. Evolution and Behavior

Following is correct match

PeriodsAge of evolutionary event
A- JurassicI- Fish
B- OrdovicianII- Amphibian
C- DevonianIII- Gymnosperm
D-Carbonyferous
IV- Invertebrates

TLS Online TPP Program

#Question id: 4930

#Unit 11. Evolution and Behavior

Which of the following is the correct sequence of events in the origin of life?

I. Formation of protocells

II. Synthesis of organic monomers

III. Synthesis of organic polymers

IV. Formation of DNA-based genetic systems

TLS Online TPP Program

#Question id: 4931

#Unit 11. Evolution and Behavior

During course of evolution first prototroph was anoxygenic?