Practice Questions

TLS Online TPP Program

#Question id: 5760

The fluctuation test of Luria and Delbruck (studying resistance to bacteriophge T1 infection) established that

#SCPH06 I Botany

T1 phage was a mutagen.
Mutations could arise prior to the time they were selected
The mutation rate varies greatly from experiment to experiment.
In E. coli the number of mutants per clone was relatively constant.

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TLS Online TPP Program

#Question id: 15477

#SCPH06 I Botany

Why these metabolites are manufactured by microbial fermentation rather than chemical synthesis

TLS Online TPP Program

#Question id: 15477

#SCPH28 | Zoology

Why these metabolites are manufactured by microbial fermentation rather than chemical synthesis

TLS Online TPP Program

#Question id: 15478

#SCPH01 Biochemistry

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

TLS Online TPP Program

#Question id: 15478

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

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

TLS Online TPP Program

#Question id: 15478

#SCPH05 I Biotechnology

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

TLS Online TPP Program

#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