Basic Principles Of Biotechnology — Part 2 MCQs with Explanations

Density of different parts of a cell is the correct answer to “Phase contrast microscope takes advantage of”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

0.008 g L-1 s-1 is the correct answer to “Measurement of K L a in a bioreactor can be carried out by sodium sulfite oxidation method, that is, based on the oxidation of sodium sulfite to sodium sulfate in the presence of a catalyst (Cu ++ or Co ++ ). In a typical experiment, a laboratory fermenter was filled with 5 liter of 0.5 M sodium sulfite solution containing 0.003 M Cu ++ ions and the air was sparged in. After 10 min, the air flow was stopped and a 10 mL sample was taken and titrated. The concentration of sodium sulfite in the sample was found to be 0.20 M. The oxygen uptake rate for this aerated system will work out to be”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

$$\frac{{\left( {rX} \right)}}{{\left( {C* - C} \right)}}$$ is the correct answer to “In a well aerated and agitated microbial culture, the 'supply' of oxygen is equal to 'demand' (uptake) of the growing culture. The K L a for such a system will be (K L a = volumetric mass transfer coefficient, C* = dissolved oxygen concentration in liquid in equilibrium with gaseous oxygen, C = instantaneous value of dissolved oxygen concentration, 'r' = specific oxygen uptake rate per unit weight of cells, X = dry weight of the cells per unit volume)”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

One reducing end and several non-reducing ends is the correct answer to “Glycogen is a branched polymer of glucose It has”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

I-Newtonian, II-Bingham plastic, III-Pseudoplastic, IV-Dilatant is the correct answer to “Shear stress versus shear rate behavior of four different types of fluids (I, II, III and IV) are shown in the figure below. Which one of the following options is correct”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

0.01 is the correct answer to “If the frequency of males affected with an X-linked recessive condition in a human population is 0.10 (one in ten), what will be the expected frequency of affected females”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

Energy required by the stirred reactors is the correct answer to “Power number also called Newton's number, is defined as a dimensionless parameter relating to”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

Anaphase II is the correct answer to “In the meiosis type cell division, chromatids segregates during”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

Lsosome is the correct answer to “Binding of mannose 6-Phosphate to protein lead to its localization to”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

P, Q, S is the correct answer to “In mammalian cells, RNA editing P. Can change the coding capacity of a gene after transcription Q. Creates a stop codon in the middle of the apo-B mRNA in intestinal cells but not in liver cells R. Usually makes many changes in each mRNA S. Can change specific nucleotides by deamination”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

P, R, S is the correct answer to “All histones undergo post-translational modification of specific amino acids. These modifications P. Alter the charge of the histone molecule Q. Are permanent R. Occur on the N-terminal tail of the histones, which are thought to extend out from the core S. Occur at specific times during the cell cycle”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

Sewall Wright is the correct answer to “The concept of random fluctuations gene frequency as an evolutionary force was originally proposed by”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

Prevent vortex and to improve aeration efficiency is the correct answer to “In a bioreactor baffles are incorporated to”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

Catalyzing the addition of -OH group to metabolites is the correct answer to “Cytochrome P450 family of enzymes causes detoxification mainly by”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

Embryonic and hematopoitic stem cells is the correct answer to “Telomerase activity was monitored in the following cell types. The highest amount of telomerase activity was found in the combination of”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

Usually has both hydrophobic and hydrophilic regions is the correct answer to “A protein which spans that lipid bilayer”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.

$$\frac{1}{v} = \frac{{{K_m} + \left[ S \right]}}{{{V_{\max }}\left[ S \right]}}$$ is the correct answer to “Which of the following equation represent the reciprocal of Michaelis-Menten equation”. This question is standard in competitive examination syllabi for Basic Principles Of Biotechnology.