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?

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#Question id: 3772

#Section 3: Genetics, Cellular and Molecular Biology

Who performed classic experiments that supported the semiconservative model of DNA replication?

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#Question id: 14367

#Section 5: Bioprocess Engineering and Process Biotechnology

During an enzyme purification, 0.23 g of protein was dissolved in 5 mL buffer. Suppose 0.5 mL of this solution converted 4.7 mmol of substrate in 30 sec. Calculate specific activity as units/mg protein - 

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#Question id: 213

#Section 2: General Biology

Which amino acid can form a covalent bond to the coenzyme pyridoxal phosphate?

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#Question id: 2102

#Section 2: General Biology

In which of the following environments would there be the greatest need for osmoregulation?

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#Question id: 20010

#Section 5: Bioprocess Engineering and Process Biotechnology

In an activated sludge process, the biomass is recycled to