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TLS Online TPP Program

#Question id: 3870

“Footprinting” or DNase protection is a technique used to identify:

#Unit 3. Fundamental Processes

  1. a region of DNA that has been damaged by mutation.

  2. E. coli cells that contain a desired, cloned piece of DNA.

  3. the position of a particular gene of a chromosome.

  4. the specific binding site of a repressor, polymerase, or other protein on the DNA.

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TLS Online TPP Program

#Question id: 5113

#Unit 5. Developmental Biology

The adult stem cell is housed in and controlled by its own adult stem cell niche. Which one of the following process not occur in niche?
TLS Online TPP Program

#Question id: 12435

#Unit 10. Ecological Principles

A diagram of a food web, for the following questions. (Arrows represent energy flow and letters represent species.)

In general, the total biomass in a terrestrial ecosystem will be greatest for which trophic level? 
TLS Online TPP Program

#Question id: 3782

#Unit 3. Fundamental Processes

In his work with pneumonia-causing bacteria and mice, Griffith found that
TLS Online TPP Program

#Question id: 13082

#Unit 13. Methods in Biology

Statement: AFLP shares some features of both RFLP and RAPD analyses.
Explanations: I. It uses restriction enzyme-digested genomic DNA as template for PCR amplification using primers that contain the restriction enzyme recognition sites plus a number of, usually 2-3, arbitrary nucleotides.
II. AFLPs are faster, less labour intensive and provide more information than RFLPs, and they are highly reproducible, which is a great advantage over RAPDs.
TLS Online TPP Program

#Question id: 11511

#Unit 10. Ecological Principles

A metapopulation is