What is the function of TFIIH in the transcription initiation complex?

#Question id: 417

#SCPH28 | Zoology

Muscle contraction involves the conversion of:

#Question id: 5054

#SCPH28 | Zoology

when one group of cells changing the behavior of an adjacent set of cells, thereby causing them to change their shape, mitotic rate, or cell fate. This kind of interaction at close range between two or more cells or tissues of different histories and properties is called as-

#Question id: 953

#SCPH28 | Zoology

 The degradation of arginine, histidine and proline all lead to the product ________.

#Question id: 1595

#SCPH01 Biochemistry

The EBV antigen fragments will be presented by the virus-infected cells along with which of the following?

#Question id: 10900

#SCPH06 I Botany

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;