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TLS Online TPP Program

#Question id: 4127

Which one of the following statements about ribosomes is true?

#SCPH28 | Zoology

  1. The large subunit contains rRNA molecules, the small subunit does not.

  2. The RNA in ribosomes plays a structural, not catalytic, role.

  3. There are about 25 of them in an E. coli cell.

  4. There are two major subunits, each with multiple proteins.

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TLS Online TPP Program

#Question id: 15867

#SCPH05 I Biotechnology

Which of the following culture is used for the production of primary and secondary metabolites?
TLS Online TPP Program

#Question id: 15867

#SCPH05 I Biotechnology

Which of the following culture is used for the production of primary and secondary metabolites?
TLS Online TPP Program

#Question id: 15868

#SCPH05 I Biotechnology

If the culture is kept in stationary phase for a prolonged period, the cells may die. Why?
a) due to the time taken for doubling of cell number
b) duration of a cell generation is too large, depending mainly on the plant species.
c) stationary phase is forced on the culture by a depletion of the nutrients
d) due to an accumulation of cellular wastes
TLS Online TPP Program

#Question id: 15868

#SCPH05 I Biotechnology

If the culture is kept in stationary phase for a prolonged period, the cells may die. Why?
a) due to the time taken for doubling of cell number
b) duration of a cell generation is too large, depending mainly on the plant species.
c) stationary phase is forced on the culture by a depletion of the nutrients
d) due to an accumulation of cellular wastes
TLS Online TPP Program

#Question id: 15869

#SCPH05 I Biotechnology

In a modest laboratory, aseptic handling, maintenance and observation of cultures, these activities can be done in the culture room.  Some facilities are required for the culture room, except?
TLS Online TPP Program

#Question id: 15869

#SCPH05 I Biotechnology

In a modest laboratory, aseptic handling, maintenance and observation of cultures, these activities can be done in the culture room.  Some facilities are required for the culture room, except?