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TLS Online TPP Program

#Question id: 4322

If a particular operon encodes enzymes for making an essential amino acid and is regulated like the trp operon, then

#Unit 3. Fundamental Processes

  1. the amino acid inactivates the repressor.

  2. the repressor is active in the absence of the amino acid.

  3. the amino acid acts as a corepressor.

  4. the amino acid turns on transcription of the operon.

More Questions
TLS Online TPP Program

#Question id: 19220

#Unit 12. Applied Biology

Opines are unique and unusual condensation products of either an amino acid and a keto acid or sugar. The condensation product of arginine and pyruvic acid is called 
TLS Online TPP Program

#Question id: 19221

#Unit 12. Applied Biology

Which gene is added downstream from the left border to prevent unwanted vector DNA past the left border from being incorporated into transgenic plants.
TLS Online TPP Program

#Question id: 19222

#Unit 12. Applied Biology

Selectable marker, which will eventually be used to detect the presence of the T-DNA inserted into the plant chromosomal DNA, is usually placed next to the
TLS Online TPP Program

#Question id: 19223

#Unit 12. Applied Biology

Based on the DNA sequence of a commonly used binary vector some example are
1. pBIN19
2. pCB301
3. pBR322
Which of the following above statements are correct?
TLS Online TPP Program

#Question id: 19224

#Unit 12. Applied Biology

Transformation efficiency is usually low, plants have been successfully transformed with large DNA fragments ranging from
TLS Online TPP Program

#Question id: 19225

#Unit 12. Applied Biology

Modification of the tissue culture conditions by the inclusion of ________ during transformation of grape, rice, corn, or soybean has been found to increase the transformation frequencies of those plant cells.