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TLS Online TPP Program

#Question id: 10414

Plants have evolved with multiple photoreceptors, Phytochrome is one of them. Which of the following statements is incorrect about these photoreceptors?

#SCPH05 I Biotechnology
  1. Phytochrome in the functionally active dimeric form with a molecular mass of about 250 kDa
  2. phytochrome chromophore is a linear tetrapyrrole and absorbed light called phytochromobilin
  3. Phytochromobilin is exported  to the cytosol where it autocatalytically attaches to the PHY apoprotein through a thioether linkage to a cysteine residue
  4. Phytochromobilin undergoes to the cis and trans isomerisation with its pyrrole ring around C-12 and C-13 after absorbing light
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TLS Online TPP Program

#Question id: 79

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

The structure of D-arabinose is shown below. How many stereoisomers are possible for this molecule?
TLS Online TPP Program

#Question id: 18688

#SCPH01 Biochemistry

Match the items in Group 1 with an appropriate description in Group 2 
Group I                                      Group 2 
P. GOR method                           1. Protein structure visualization 
Q. Genome sequencing           2. Sanger method
R. ESTs                                         3. Protein secondary structure prediction
S. RasMol                                    4. gene expressed as cDNA
TLS Online TPP Program

#Question id: 19605

#SCPH05 I Biotechnology

The bond angle around atom which uses sp2 hybridization is ———–
TLS Online TPP Program

#Question id: 256

#SCPH12 I Genetics

The tetranucleotide AGTC (in DNA) has a free hydroxyl group on
TLS Online TPP Program

#Question id: 2620

#SCPH05 I Biotechnology

Which option is correct about catabolite activator protein binds as