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TLS Online TPP Program

#Question id: 4127

Which one of the following statements about ribosomes is true?

#SCPH05 I Biotechnology

  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: 3009

#SCPH05 I Biotechnology

 Endospores are
TLS Online TPP Program

#Question id: 18372

#SCPH06 I Botany

Which enzyme is used to degrade of chlorinated solvents and pesticides present in soil makes the soil contaminated
TLS Online TPP Program

#Question id: 1433

#SCPH28 | Zoology

Which of the following interventions would NOT be likely to prevent tumor cells from metastasizing?
TLS Online TPP Program

#Question id: 4347

#SCPH06 I Botany

According to the lac operon model proposed by Jacob and Monod, what is predicted to occur if the operator is removed from the operon?
TLS Online TPP Program

#Question id: 371

#SCPH05 I Biotechnology

How many milliliters of a 2.0 M solution of boric acid must be added to 600 mL of a solution of 10 mM sodium borate in order for the pH to be 9.45? (pKa of boric acid = 9.24)