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TLS Online TPP Program

#Question id: 18927

Which of the following statements, if any, is false?

#Part-A Aptitude & General Biotechnology
  1. The polymerase chain reaction (PCR) is a cell-free method of DNA amplification.
  2. PCR is usually used to amplify a specific DNA sequence of interest using oligonucleotide primers that bind to closely flanking sequences.
  3. PCR is superior to cell-based DNA cloning for two major reasons: it is much quicker and it allows much greater DNA amplification.
  4. PCR requires the use of a heat-stable DNA polymerase to make copies of the template DNA.
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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
TLS Online TPP Program

#Question id: 10387

#Part-B Specialized Branches in Biotechnology

Action spectrum stimulated phototropism in oat coleoptiles. The “three finger” pattern in the 400–500 nm region is characteristic of-
TLS Online TPP Program

#Question id: 10388

#Part-B Specialized Branches in Biotechnology

Phytochrome can interconvert between Pr and Pfr forms, Pr receives red light and converts into Pfr while Pfr receives far-red light and then converts into Pr, so which form of phytochrome is responsible for seed germinations?