TLS Online TPP Program

#Question id: 4151


The signal sequences that direct proteins to the nucleus are:

#SCPH28 | Zoology
  1. always at the amino terminus of the targeted protein.

  2. cleaved after the protein arrives in the nucleus.

  3. glycosyl moieties containing mannose 6-phosphate residues.

  4. not located at the ends of the peptide, but in its interior.

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TLS Online TPP Program

#Question id: 19200

#SCPH28 | Zoology

What kind of biosensors uses ion-selective electrodes to convert the biological reaction into electronic signal?

TLS Online TPP Program

#Question id: 11146

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

If you experimentally increase the concentration of Na+ outside a cell while maintaining other ion concentrations as they were, what would happen to the cell's membrane potential?

TLS Online TPP Program

#Question id: 10535

#SCPH05 I Biotechnology

The insect ingests plant tissue containing the fatty acids, an enzyme in the gut conjugates the plant-derived fatty acid to an insect-derived amino acid to form an elicitor, When plants recognize elicitors from insect saliva induces some typical responses such as

a) Increasing Ca2+ levels in the cytosol and then activate an array of target proteins, such as calmodulin and other Ca2+-dependent protein kinases

b) In Arabidopsis, a calmodulin-binding transcriptional regulator called IQD1 was identified as an important mediator of defense responses against insect herbivory

c) overexpression of IQD1 in Arabidopsis activate the herbivore activity

d) IQD1 binds calmodulin, a major Ca2+-binding protein, in a Ca2+-dependent manner and subsequently inhibits the gene involved in glucosinolate biosynthesis

Which of the following combination from above statements is correct?

TLS Online TPP Program

#Question id: 19125

#SCPH06 I Botany

Which nature of interaction between the analytes and the biological material used in biosensor?
1. The analytes may be converted into a new chemical molecule (by enzymes)
2. The analytes may simply bind to the biological material present on the biosensor 
3. The analytes may be converted into dimer molecule 
Which of the following above statements are correct?

TLS Online TPP Program

#Question id: 2999

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

Agar is superior to gelatin as a solidifying agent because agar