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TLS Online TPP Program

#Question id: 15461

When doing experiments with bacteria,

#Unit 2. Cellular Organization
  1. it is usually not necessary to standardize which stage of growth is used.
  2. it is best to use colonies as all the bacteria in a colony are at the same stage of growth.
  3. it is best to use bacteria from the same stage of growth.
  4. the age of the bacteria is not important.
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TLS Online TPP Program

#Question id: 2641

#Unit 2. Cellular Organization

Which segments of the attenuator together form the repression loop?
TLS Online TPP Program

#Question id: 19877

#Unit 13. Methods in Biology

A recombinant DNA molecules is produced by

a) by cutting DNA from two source

b) Joining of two or more DNA fragments from different organism 

c) Joining of two or more DNA fragments originating from different organisms
TLS Online TPP Program

#Question id: 1749

#Unit 4. Cell Communication and Cell Signaling

The αβ heterodimeric form of the IL-2 receptor:
TLS Online TPP Program

#Question id: 8926

#Unit 9. Diversity of Life Forms

Sponges and cnidarians are among the fossilized animals found in both the Ediacara Hills and the Burgess Shale from the Rocky Mountains of British Colombia. This observation requires that
TLS Online TPP Program

#Question id: 21112

#Unit 12. Applied Biology

Which one of the following is a biochemical method?
 1. ELISA
 2. Western blot
 3. Flow cytometry
4. Southern blot
Which of the following is the correct answer?