List of top Plant, Animal and Microbial Biotechnology Questions

Which ONE of the following options is CORRECT with respect to sequential breakdown of deoxyribonucleic acid (DNA) into lower-molecular weight compounds?
In the process of generating a clonal mammalian cell line, a single cell was seeded in a well of a cell culture plate. After the first 48 hours, one of the progeny cells underwent apoptosis due to a new mutation. If the doubling time of the cells is 24 hours and no more cell death occurs, the total number of cells after a total of 7 days from seeding will be . (answer in integer)
For monoclonal antibody production, hypoxanthine .
Aerobic biomass has a yield coefficient value of 0.4 for glucose (molecular weight = 180 g/mole) substrate. The bacteria is represented as \( {C}_5{H}_7{O}_2{N} \) (molecular weight = 113 g/mole). Assume that no endogenous metabolism occurs. The percentage of carbon going into CO2 from 1 mole/L glucose is ________ % (rounded off to two decimal places).
Aerobic biomass has a yield coefficient value of 0.4 for glucose (molecular weight = 180 g/mole) substrate. The bacteria is represented as \( {C}_5{H}_7{O}_2{N} \) (molecular weight = 113 g/mole). Assume that no endogenous metabolism occurs. The percentage of carbon going into CO2 from 1 mole/L glucose is ________ % (rounded off to two decimal places).
Which of the following is/are considered as biotic elicitor(s) in plant cell culture?
Read the following statements:
I. Photosynthesis takes place within the chloroplasts of the eukaryotes, whereas the breakdown of complex molecules to yield energy takes place in the cytoplasm and in the mitochondria.
II. Photosynthesis takes place within the chloroplasts of the prokaryotes, whereas the breakdown of complex molecules to yield energy takes place in the cytoplasm and in the mitochondria.
III. All living organisms retain the enzymatic machinery to partially oxidise glucose without the help of oxygen. This breakdown of glucose to pyruvic acid is called glycolysis.
IV. All living organisms retain the enzymatic machinery to completely oxidise glycerol without the help of oxygen. This breakdown of glycerol to citric acid is called glycolysis.
The correct choice is:
Introduction of foreign genes into plant cells can be carried out using
The type of nucleic acid present in \( \lambda \)-phage is
Terpenoids are made of _________ units.
Match the microbial product (Column I) with its respective application (Column II).

Which of the following combinations of plant hormones and their associated function are CORRECT? 
\[\begin{array}{c c} \textbf{Hormone} & \textbf{Function} \\ \text{P. Abscisic acid} & \text{Breaks seed dormancy} \\ \text{Q. Auxin} & \text{Induces cell division} \\ \text{R. Ethylene} & \text{Stimulates ripening of fruits} \\ \text{S. Gibberellin} & \text{Promotes seed dormancy} \\ \end{array}\]

Match enzymes in Group I with their corresponding industrial application in Group II. 
    Group I                        Group II
P. Amylase                   1. Laundry detergent 
Q. Invertase                 2. Fruit juice clarification 
R. Pectinase                 3. Liquefaction of sucrose 
S. Xylanase                  4. Pulp and paper processing 
 

Which of the following statement(s) is/are CORRECT about Agrobacterium tumefaciens?
Which one of the following statements is INCORRECT about hybridoma production?