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: 5245

#Biochemistry

Which method of gene transfer involves direct contact between the bacteria?

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#Question id: 5246

#Biochemistry

The end result of F factor mediated conjugation:

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#Question id: 5247

#Biochemistry

Which of the following is not a protein or group of proteins required for conjugation to occur?

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#Question id: 5737

#Applied Microbiology

When an organism gains one extra copy of a chromosome but not a complete haploid set, the conditions is known as

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#Question id: 5738

#Applied Microbiology

It was once thought that the ____ karyotype was related to criminal disposition because it led to aggressive behavior due to excessive "maleness".

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#Question id: 5739

#Applied Microbiology

Polyploid plants found in nature usually have even numbers of chromosomes because organisms having odd numbers