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TLS Online TPP Program

#Question id: 10558

In a vertically oriented glass capillary tube, the upward movement of water is due to

#Unit 6. System Physiology – Plant
  1. The attraction of water to the polar surface of the glass tube (adhesion) and the surface tension of water, which tends to minimize the area of the air–water interface
  2. The upward movement of water is due to the positive hydrostatic pressure(Yp)
  3. The attraction of water to the polar surface of the glass tube (cohesion) and the surface tension of water, which tends to minimize the area of the air–water interface
  4. Gravity (Yg) causes water to move upward
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TLS Online TPP Program

#Question id: 5251

#Unit 8. Inheritance Biology

What do transduction, transformation, and conjugation have in common?
TLS Online TPP Program

#Question id: 5252

#Unit 8. Inheritance Biology

Which type(s) of genetic transfer lead to incorporation of new DNA into the bacterial chromosome?

I. Conjugation mediated by F factor

II. Hfr mediated conjugation

III. Transduction

IV. Transformation
TLS Online TPP Program

#Question id: 5253

#Unit 8. Inheritance Biology

In a hypothetical situation, the genes for sex pilus construction and for tetracycline resistance are located together on the same plasmid within a particular bacterium. If this bacterium readily performs conjugation involving a copy of this plasmid, then the resultshould be
TLS Online TPP Program

#Question id: 5254

#Unit 5. Developmental Biology

Following signal transduction pathways can be grouped into several basic types, based on the sequence of intracellular events.

According to above figure, which of the following correctly represents the basic concepts of all signalling pathway?
TLS Online TPP Program

#Question id: 5255

#Unit 8. Inheritance Biology

Which of the following is a structure that permits conjugation to occur?
TLS Online TPP Program

#Question id: 5256

#Unit 8. Inheritance Biology

If the experimental population of E. coli lacks an F factor or F plasmid, and if bacteriophage are excluded from the bacterial cultures, then which of these is a means by which beneficial mutations might be transmitted horizontally to other E. coli cells?