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TLS Online TPP Program

#Question id: 3855

In eukaryotes, which of the following modifications is made to a primary transcript prior to its transport out of the nucleus?

#SCPH28 | Zoology

  1. poly(A) tails added to the 3' end 

  2. 7-methyl guanosine caps added to the 5' end

  3. exon sequences, when present, are spliced out 

  4. all of these

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TLS Online TPP Program

#Question id: 6980

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

Teeth form from
TLS Online TPP Program

#Question id: 2668

#SCPH05 I Biotechnology

The toxic shock syndrome toxin is produced by some Salmonella species when there is not sufficient iron present. When iron is present, it prevents transcription of the TSS-toxin gene. Iron therefore serves as __________.
TLS Online TPP Program

#Question id: 90

#SCPH01 Biochemistry

Pyranose rings are usually most stable when the ring adopts a ________ conformation with the bulkiest ring substituents in ________ positions.
TLS Online TPP Program

#Question id: 1735

#SCPH05 I Biotechnology

In the immunological synapse:
TLS Online TPP Program

#Question id: 19130

#SCPH01 Biochemistry

The biological component is suitably immobilized on to the transducer by which ways.
1. Enzymes are immobilized by glutaraldehyde 
2. Porous sheet like lens tissue paper or nylon net fabric are used
3. Transducer surface may not be covalently linked to this cross-linked siloxane
Which of the statements is incorrect?