Which mechanism is helpful in secondary metabolite production

1. ppGpp secretion

2. Autoinducer

3. Nutrient limitation

4. Senescence genes

Which combination is incorrect  from the following.

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#Question id: 6982

#SCPH06 I Botany

Which of the following genes control the final structures of appendages from each segment?

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#Question id: 18904

#SCPH01 Biochemistry

Advantages of using short half-life isotopes

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#Question id: 51

#I Life Science/ Life Sciences Group – I-V

 If the equilibrium constant, Keq, for the reaction ATP → ADP + Pi is 2.22 × 10⁵ M, calculate the standard free-energy change, ΔG°, for the synthesis of ATP from ADP and Pi at 25 °C.

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#Question id: 14151

#SCPH05 I Biotechnology

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.

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#Question id: 15478

#SCPH06 I Botany

Escherichia coli preferentially utilizes glucose by preventing the uptake of lactose and switching off transcription of the lac operon. This mechanism is known as