TLS Online TPP Program
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TLS Online TPP Program
#Question id: 17085
#Unit 12. Applied Biology
Spontaneous cell fusion occurs at a very low rate. Enhanced fusion can be done by
1. Sendai virus
2. Polyethylene glycol
3. Ficol
4. Phenol red
Which of the above mentioned can be used for fusion experiments?
TLS Online TPP Program
#Question id: 17076
#Unit 12. Applied Biology
The various advantages of serum-free media could be
1. Improved reproducibility of results from different laboratories
2. Easier downstream processing of products from cultured cells
3. Biassays are free from interference due to serum proteins
4. They permit selective culture of diffrentiated cell types from the heterogeneous cultures
Which of the statements are true?
TLS Online TPP Program
#Question id: 16492
#Unit 12. Applied Biology
Upstream elements on the other hand regulates the activity of gene action are
A. Enhancer sequences
B. Silencer sequences
C. Termination sequences
D. Signal sequences
Mark the option with correct combination
TLS Online TPP Program
#Question id: 16487
#Unit 12. Applied Biology
Few limitations regarding organ culture
It can be maintained only for a few months
Not suitable for biochemical and molecular analyses
For each study, fresh organ cultures have to be initiated
It denatures very easily
Which of the above statements are correct?
TLS Online TPP Program
#Question id: 15477
#Unit 12. Applied Biology
Why these metabolites are manufactured by microbial fermentation rather than chemical synthesis
TLS Online TPP Program
#Question id: 15478
#Unit 12. Applied Biology
Escherichia coli preferentially utilizes glucose by preventing the uptake of lactose and switching off transcription of the lac operon. This mechanism is known as