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TLS Online TPP Program

#Question id: 4619

Within six months of effectively using methicillin to treat S. aureus infections in a community, all new S.aureus infections were caused by MRSA. How can this best be explained?

#XL - T Zoology

  1. A patient must have become infected with MRSA from another community.

  2.  In response to the drug, S. aureus began making drug-resistant versions of the protein targeted by the drug.

  3. Some drug-resistant bacteria were present at the start of treatment, and natural selection increased their frequency.

  4. S. aureus evolved to resist vaccines.

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TLS Online TPP Program

#Question id: 4130

#XL - T Zoology

Which of the following is not true of tRNA molecules?
TLS Online TPP Program

#Question id: 2391

#XL - Q Biochemistry

Which organelle is the primary site of ATP synthesis in eukaryotic cells?
TLS Online TPP Program

#Question id: 18543

#XL - R Botany

Which of the oil is used in the preparation of paints and varnishes 
TLS Online TPP Program

#Question id: 5694

#XL - T Zoology

In anaphase I, the chromosomes separate in  three different ways , which of the following way for chromosome saparation leads to nonviable gamete formation
TLS Online TPP Program

#Question id: 19625

#XL - P Chemistry

Ostwald’s dilution law is applicable to: