TLS Online TPP Program

#Question id: 3255


The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 16 gm to 24 gm. Which of the following natural selection operate on this species?

#Part-A Aptitude & General Biotechnology
  1. Disruptive natural selection                

  2. Stabilize natural selection   

  3. Directional natural selection                    

  4. Cyclic natural selection 

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TLS Online TPP Program

#Question id: 10333

#Part-B Specialized Branches in Biotechnology

Four elements, oxygen, carbon, and hydrogen and nitrogen are the major components of most organic compounds, which of the following elements are more abundant in plants ?

TLS Online TPP Program

#Question id: 10334

#Part-B Specialized Branches in Biotechnology

N2 combines with hydrogen to form ammonia under elevated temperature (about 200°C) and high pressure (about 200 atmospheres) and in the presence of a metal catalyst (usually iron). The extreme conditions are required to overcome the high activation energy of the reaction. This nitrogen fixation reaction, called

TLS Online TPP Program

#Question id: 10335

#Part-B Specialized Branches in Biotechnology

plants can store high levels of nitrate, and they can translocate it from tissue to tissue without deleterious effect. Yet if livestock or humans consume plant material that is high in nitrate, they may suffer with,

TLS Online TPP Program

#Question id: 10336

#Part-B Specialized Branches in Biotechnology

methemoglobinemia, a disease, What will cause inside the human body?

TLS Online TPP Program

#Question id: 10337

#Part-B Specialized Branches in Biotechnology

In biological nitrogen fixation, the process of nitrification by organism respective bacteria A--which convert the ammonia to nitrite and B--- further converted into nitrate in the soil by their respective A and B bacteria known as;

TLS Online TPP Program

#Question id: 10338

#Part-B Specialized Branches in Biotechnology

Nitrate from the soil solution actively absorb by Plant roots via several low- and high-affinity transporters known as