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 - S Microbiology
  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: 11661

#XL - T Zoology

Autogenic factors results from the community and its organism for example filling in the pond by the dead organism from the pond itself. It included several other factors except____

TLS Online TPP Program

#Question id: 11662

#XL - T Zoology

During the successional process generation of community through the short time period successional process as well as long time successional process;

a) During short time period evolve pioneer community from the climax community

b) During short time period generation of the microbial community 

c) During long time period generation of end community (forest) from the pioneer community

d) During long time period generation of the microbial community 

TLS Online TPP Program

#Question id: 11663

#XL - T Zoology

Successional community changes in every steps,  process of lithosere is involved in a particular order manner such as,

TLS Online TPP Program

#Question id: 11681

#XL - T Zoology

A baby is born with a penis, a scrotum with no testes, no vagina, and XX chromosomes. This condition is referred to as hermaphroditism. Which of the following could cause this abnormality?

TLS Online TPP Program

#Question id: 11682

#XL - T Zoology

A young woman is given daily injections of a substance beginning on the 16th day of her normal menstrual cycle and continuing for 3 weeks. As long as the injections continue, she does not menstruate. The injected substance could be which of the following?

TLS Online TPP Program

#Question id: 11683

#XL - T Zoology

Which of the following could inhibit the initiating labor?