TLS Online TPP Program

#Question id: 19458


How phase contrast and DIC microscopy are used to image live cells and unstained tissues?

#Part-B Specialized Branches in Biotechnology
  1. Take advantage of differences in the contrast and thickness of cellular materials
  2. Take advantage of differences in the refractive index and thickness of cellular materials
  3. Live cells show bioluminiscence
  4. Take advantage of differences in chromosomes
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TLS Online TPP Program

#Question id: 10361

#Part-B Specialized Branches in Biotechnology

The carbon skeleton for amino acids derives from 3-phosphoglycerate generated during glycolysis is called anaplueratic reaction. Generated amino acids from 3-PGA is that,

TLS Online TPP Program

#Question id: 10362

#Part-B Specialized Branches in Biotechnology

Bacteria can convert atmospheric nitrogen into ammonia, Several form symbiotic associations with higher plants is given below;

               HOST PLANT                                                                          N-FIXING SYMBIONTS

A) Gunnera                                                                            i) Frankia

      B) Azolla                                                                                ii) Acetobacter

C) Leguminous                                                                     iii) Azospirillum

             D) Actinorhizal                                                                      iv) Nostoc

             E) Sugarcane                                                                         v) Anabaena

             F) Miscanthus                                                                       vi) Sinorhizobium


Which of the following combination with the host plants and n-fixing symbionts is CORRECT?

TLS Online TPP Program

#Question id: 10363

#Part-B Specialized Branches in Biotechnology

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?

TLS Online TPP Program

#Question id: 10364

#Part-B Specialized Branches in Biotechnology

Which of the following is the most common type of symbiosis occurs between members of the plant family and soil bacteria?

TLS Online TPP Program

#Question id: 10385

#Part-B Specialized Branches in Biotechnology

The leaves of many species are able to bend toward the sun during its progress across the sky, a phenomenon known as

TLS Online TPP Program

#Question id: 10386

#Part-B Specialized Branches in Biotechnology

 During light-regulated plant development many seeds require light to germinate, a process called