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TLS Online TPP Program

#Question id: 15923

The growth of animal cells in vitro in a suitable culture medium is called___________

#SCPH05 I Biotechnology
  1. Gene expression
  2. Transgenesis
  3. Plant tissue culture
  4. Animal cell culture
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TLS Online TPP Program

#Question id: 4342

#SCPH06 I Botany

Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the operator to the far end of the operon, past the transacetylase (lacA) gene, which of the following processes would likely occur when the cell is exposed to lactose?
TLS Online TPP Program

#Question id: 15656

#SCPH01 Biochemistry

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium. Explain the two regulatory pathways for Mel1 that can explain the behavior of the MelA– and MelB– mutations. For each regulatory pathways what is a role for the inducer melibiose?
TLS Online TPP Program

#Question id: 1648

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

The complementarity determining regions (CDRs):
TLS Online TPP Program

#Question id: 3532

#SCPH01 Biochemistry

In a plant species, flower color purple is dominant over white. One such purple-flowered plant upon selfing produced 35 viable plants, of which 9 were white flowered and the rest were purple flowered. What fraction of these purple-flowered progeny is expected to be pure purple-flowered line?
TLS Online TPP Program

#Question id: 10567

#SCPH05 I Biotechnology

Cell A is having solute potential of -14 and Pressure potential of 3. Cell B is having Solute potential of -16 and Pressure potential of 4. The water will travel from