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#Question id: 1620


Natural killer (NK) cells do NOT:

#I Life Science/ Life Sciences Group – I-V
  1. Respond to interferon

  2. Contain perforin

  3. Contain tumor necrosis factor (TNF)

  4. Kill only by damaging the target cell outer membrane


Answer:- Option(s): 4


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#Question id: 10804

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

Major types of alkaloids, their amino acid precursors, and well-known examples of each type;

Alkaloid class

Biosynthetic precursor

Examples

A. Pyrrolidine

i. Lysine

a. Coniine

B. Tropane

ii. Ornithine

b. Retrorsine

C. Piperidine

 

c. Lupinine

D. Pyrrolizidine

 

d. Nicotine

E. Quinolizidine

 

e. Atropine and Cocaine

Which of the following combination from the given table is correct?

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#Question id: 2624

#SCPH28 | Zoology

What is negative regulation of lac operon

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#Question id: 3006

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

A bacterial population increases from 103 cells to 109 cells in 10 h. Calculate the number of generation time in minute.

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#Question id: 816

#SCPH01 Biochemistry

Protein stability primarily depends on

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#Question id: 19299

#SCPH01 Biochemistry

A new patented technology that permits a rapid and effective elucidation of functions of unknown genes/DNA sequences. 

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