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TLS Online TPP Program

#Question id: 4963


Which free-living cells were the earliest contributors to the formation of Earthʹs oxidizing atmosphere?

#Unit 11. Evolution and Behavior
  1. cyanobacteria

  2. chloroplasts

  3. mitochondria

  4. seaweeds


Answer:- Option(s): 1


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TLS Online TPP Program

#Question id: 12930

#Unit 13. Methods in Biology

Name the library that represents only the mRNA from a particular cell or tissue at a specific point in time 

TLS Online TPP Program

#Question id: 12931

#Unit 13. Methods in Biology

Choose the incorrect statement about the Genome library.

TLS Online TPP Program

#Question id: 12932

#Unit 13. Methods in Biology

Why mRNA cannot be used directly in cloning?

TLS Online TPP Program

#Question id: 12933

#Unit 13. Methods in Biology

Choose the correct order for the cloning process.
1. The production of cDNA is carried out using an enzyme termed Reverse transcriptase.
2. mRNA cannot be used directly in cloning.
3. It is possible to synthesis complementary DNA molecule to all the mRNA from the selected tissue.
4. The cDNA may be inserted into vectors and then cloned.

TLS Online TPP Program

#Question id: 12934

#Unit 13. Methods in Biology

Reverse transcriptase enzyme is isolated from____

TLS Online TPP Program

#Question id: 12935

#Unit 13. Methods in Biology

 The integrity of the RNA should always be checked by _____

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