TLS Online TPP Program

#Question id: 2265


Passage through pores in the nuclear envelope is restricted primarily to

#Unit 2. Cellular Organization
  1. proteins, RNA, and protein-RNA complexes

  2. lipids and glycolipids

  3. DNA and RNA

  4. RNA and protein-carbohydrate complexes

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TLS Online TPP Program

#Question id: 30115

#Unit 1. Molecules and their Interaction Relevant to Biology

The antibacterial trimethoprim is an inhibitor of 

TLS Online TPP Program

#Question id: 1458

#Unit 4. Cell Communication and Cell Signaling

Vinblastine is a standard chemotherapeutic drug used to treat cancer. Because it interferes with the assembly of microtubules, its effectiveness must be related to

TLS Online TPP Program

#Question id: 10900

#Unit 6. System Physiology – Plant

companion cells in minor veins of mature leaves. All three cell types have dense cytoplasm and abundant mitochondria, there are three types companion cells  present in column A while its characteristics given in column B;

             COLUMN A                                                               COLUMN B

A) Ordinary companion cells             i) appear well suited for taking up solutes via cytoplasmic connections numerous plasmodesmata connecting them to bundle sheath cells. Its having numerous small vacuoles, as well as poorly developed thylakoids.

 

B) Transfer cells                                 ii) have chloroplasts with well-developed thylakoids     and a cell wall with a smooth inner surface. The number of plasmodesmata connecting ordinary companion cells to surrounding cells.

 C) Intermediary cells                          iii) the development of fingerlike wall in growths, particularly on the cell Walls. These wall ingrowths greatly increase the surface area of the transfer cell’s  plasma membrane, few plasmodesmata connect this type of companion cell to any of the surrounding cells except its own sieve element.

Which of the following correct combination;

TLS Online TPP Program

#Question id: 11843

#Unit 6. System Physiology – Plant

During an experiment Six-day-old pea seedlings were grown in the dark in the presence of 10 ppm (parts per million).  Firstly, Grown seedling treated with ethylene and secondly grown seedling left untreated. What will be the conclusion has been drawn from this experiments?      

TLS Online TPP Program

#Question id: 7049

#Unit 5. Developmental Biology

Invaginating cells during amphibian gastrulation, in which the main body of each cell is displaced toward the inside of the embryo while maintaining contact with the outside surface by way of a slender neck-