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TLS Online TPP Program

#Question id: 2675

Which of the following statements regarding the trp operon is true?

#SCPH05 I Biotechnology

  1. The operator region produces the mRNA that codes for the repressor.

  2. Repressor proteins are inactivated by the presence of the repressor.

  3. The regulatory gene is not transcribed in the presence of the repressor.

  4. The trp operon is always activated unless deactivated by a repressor.

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TLS Online TPP Program

#Question id: 14112

#SCPH05 I Biotechnology

Proteomics refers to the study of __________.
TLS Online TPP Program

#Question id: 14851

#SCPH06 I Botany

From a pack of 52 cards two are drawn at random. The probability that one is a king and the other a queen is
TLS Online TPP Program

#Question id: 12738

#SCPH01 Biochemistry

Match  the following:
1. Growth Factors                                                    i. GTPase
2. Protein kinases                                                    ii. PDGF
3. G- Proteins                                                           iii. DNA binding protein
4. Nucleus located transcription factors      iv.Serine Kinases
TLS Online TPP Program

#Question id: 14151

#SCPH01 Biochemistry

Which of the following statement is true?
A) PAM matrices are derived from an evolutionary model whereas the BLOSUM matrices consist of entirely direct observations. 
B) Because of BLOSUM matrices have less evolutionary meaning that is why the PAM matrices are used most often for reconstructing phylogenetic trees.
C) BLOSUM matrices are entirely derived from local sequence alignments of conserved sequence blocks, whereas the PAM matrix is based on the global alignment of full-length sequences.
D) BLOSUM matrices are more advantageous in searching databases and finding conserved domains in proteins.
TLS Online TPP Program

#Question id: 345

#SCPH05 I Biotechnology

As the [H3O+] of the solution decreases, the [OH-] ________.