TLS Online TPP Program

#Question id: 18617


Both the metal ion used in PCR have different functions

#Unit 14. Methods in Biology
  1. first add H to 3’OH, while second reduce positive charge of dNTP
  2. first removes H from 3’OH, while second neutralises negative charge of dNTP
  3. both the metal ion removes H from 3’OH.
  4. both the metal ion neutralises negative charge of dNTP
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TLS Online TPP Program

#Question id: 4362

#Unit 3. Fundamental Processes

How are bacteria able to change their patterns of protein synthesis so quickly in response to environmental changes?

TLS Online TPP Program

#Question id: 4363

#Unit 3. Fundamental Processes

researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. In one set of experiments, she succeeded in increasing acetylation of histone tails in the chromatin of the cells. Which of the following results would she most likely see in these cells?

TLS Online TPP Program

#Question id: 4364

#Unit 3. Fundamental Processes

A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. One of her colleagues suggested she try increased methylation of cytosine (C) nucleotides in the DNA of promoters of a mammalian system. Which of the following results would she most likely see?

TLS Online TPP Program

#Question id: 4365

#Unit 3. Fundamental Processes

Which of the following methods is utilized by eukaryotes to control their gene expression that is different from the type of control found in bacteria?

TLS Online TPP Program

#Question id: 4366

#Unit 3. Fundamental Processes

Which of the following is the correct order of addition of general transcription factors to the initiation complex?

TLS Online TPP Program

#Question id: 4367

#Unit 3. Fundamental Processes

Which of the following is considered a universal transcription factor?