Free living nitrogen fixing takes place as shown in the following;

             TYPE                                                                                       N-FIXING GENERA

A) Cyanobacteria (blue-green algae)                                        i) Bacillus

B) Aerobic                                                                                     ii) Clostridium

C) Facultative                                                                              iii) Anabaena

D) Anaerobic nonphotosynthetic                                            iv) Rhodospirillum

E) Anaerobic photosynthetic                                                     v) Azospirillum

 Which of the following combination of free living nitrogen fixing bacteria is correct?

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#Question id: 18736

#Part-A Aptitude & General Biotechnology

Ligation enzymes are used for ligating newly synthesized okazaki fragments. What holds true for okazaki fragments?

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#Question id: 14982

#Part-B Specialized Branches in Biotechnology

A very important function of the Golgi apparatus and endoplasmic reticulum is the synthesis of another organelle, the lysosome. This organelle is found in a variety of organisms such as—

1.Protozoa 

2. Some algae

3. Fungi

4. Plants 

5. Animals

In which of the above organisms lysosome is not found.

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#Question id: 18783

#Part-A Aptitude & General Biotechnology

Sensitivity of various immunoassays are given match them correctly

Assay	Sensitivity∗ (g antibody/ml)
a) Mancini radial immunodiffusion	i) 2
b) Ouchterlony double immunodiffusion	ii) 20–200
c) Immunoelectrophoresis	iii) 20–200
d) Rocket electrophoresis	iv) 10–50

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#Question id: 16496

#Part-B Specialized Branches in Biotechnology

Neomycin phosphotransferase  gene is used as a selectable marker. It provides resistence against which antibiotic ?

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#Question id: 11217

#Part-B Specialized Branches in Biotechnology

One-way synaptic transmission occurs because ________.