TLS Online TPP Program

#Question id: 13039


 Which of the following is incorrect about a microarray?

#Unit 14. Methods in Biology
  1. It is a slide attached with a high-density array of immobilized DNA oligomers representing the entire genome of the species under study 
  2. Array of immobilized DNA oligomers cannot be cDNAs
  3. Each oligomer is spotted on the slide and serves as a probe for binding to a unique complementary cDNA 
  4. It is the most commonly used global gene expression profiling method
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TLS Online TPP Program

#Question id: 1964

#Unit 4. Cell Communication and Cell Signaling

A bacterium entering the body through a small cut in the skin will do which of the following?

TLS Online TPP Program

#Question id: 1965

#Unit 4. Cell Communication and Cell Signaling

In some insects, such as Drosophila, fungal cell wall elements can activate the protein Toll. What is Tollʹs function?

TLS Online TPP Program

#Question id: 1966

#Unit 4. Cell Communication and Cell Signaling

Mammals have Toll-like receptors (TLRs) that act in a manner similar to those of insects. While not specific to a particular pathogen, a TLR can recognize a kind of macromolecule that is absent from vertebrates but present in/on certain groups of pathogens. Which of the following is most likely to be recognized by a particular TLR that defends against some viruses?

TLS Online TPP Program

#Question id: 1967

#Unit 4. Cell Communication and Cell Signaling

Which of the following is the most likely reason that ancient peoples sought to identify inflammation?

TLS Online TPP Program

#Question id: 1968

#Unit 4. Cell Communication and Cell Signaling

Septic shock, a systemic response including high fever and low blood pressure, can be life threatening. What causes septic shock?

TLS Online TPP Program

#Question id: 1969

#Unit 4. Cell Communication and Cell Signaling

A bacterium has elements on its surface that are resistant to lysozyme. If an individual is infected with this bacterium, what is a probable consequence?