List of top Plant Biotechnology Questions

Quantum yield of oxygen production in the light reactions of photosynthesis is
Seed dormancy is broken by mechanical scarification in this crop
Photorespiration is found to be zero (or) negligible in these crop plants
(A) Sunflower
(B) Pineapple
(C) Amaranthus
(D) Fingermillet
Choose the correct answer from the options given below:
With reference to the vase-life of cut-flowers, identify the correct statement(s)
(A) For prolonging life and quality, cut-flowers are often held in holding (or) vase solutions
(B) The vase solutions contain a combination of carbohydrates, growth regulators, inhibitors and minerals.
(C) Any vase solution must contain essential two components i.e., mineral salts and ethylene inhibitors.
(D) Mineral salts help in preventing plugging of conducting tissues while ethylene inhibitors make available the respiratory substrates.
Choose the correct answer from the options given below:
Identify the scientist(s) who gave the term "Hydroponics" for growing of plants in water culture
In Northern hybridization?
Nucleolus is the site for the synthesis of this component in a cell
Given below are two statements:
Statement (I) : Dichlorophenyl dimethylurea (DCMU), also known as Diuron - used as herbicide, is an inhibitor of light reactions of photosynthesis.
Statement (II) : DCMU acts by accepting electrons from early receptors of PS I.
In light of above statements, choose the most appropriate answer from the given options.
An example of long day plant
Chlorophyll biosynthesis begins with this amino acid
In actively growing plant cells (rice, wheat, groundnut etc.), this component of water potential becomes negligible
(A) Solute potential
(B) Pressure potential
(C) Matric potential
(D) Gravitational potential
Choose the correct answer from the options given below:
The consensus sequence 5'-ACCAUGG-3'; is also known as
Which of the following is Type II restriction enzyme?
Which of the following is the activity of reverse transcriptase?
pBluescriptSK is an example of
Which of the following chemical is used to make E. coli cells competent to take external DNA?
In a nucleotide sequence ATGC, which of the following nucleotide has the unlinked 5' - OH?
Which of the following subunit of RNA polymerase complex is absent during elongation phase of bacterial transcription?
Which of the following is not related to termination of a transcript in E. coli?
What are isoaccepting tRNAs?
Which of the following metabolites is not an intermediate in the triglyceride biosynthesis by Kennedy pathway?
Characteristics of bundle sheath cells in $\text{C}_4$ plants}
(A) Have thin cell walls
(B) Contain centrifugally arranged chloroplasts
(C) Contain stacked thylakoid membranes and do not have starch granules
(D) Carry out light-independent reactions of photosynthesis
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : The CAM plants undergo night time acidification and day time deacidification.
Reason (R) : The CAM plants take up $\text{CO}_2$ during day time, store it in the form of malate in vacuoles and break it down to release $\text{CO}_2$ in the night time.
Some of the exceptional properties of regulatory/allosteric enzymes are:
(A) Their Kinetics do not obey the Michaelis-Menten equation.
(B) They are mostly monomeric in nature.
(C) They have more than one substrate binding sites and the substrate binding to different sites is mutually independent, exclusive and noncooperative.
(D) Binding of effector molecules to them may lead to their activation or inhibition.
Match List-I with List-II

List-I (Name of the lipid) & List-II (Nature of the lipid)
(A) Ceramide & (III) Structural parent of all sphingolipids
(B) Cerebroside & (IV) Neutral Glycosphingolipid
(C) Ganglioside & (II) Acidic (charged) glycosphingolipid
(D) Platelet Activating Factor & (I) Ether glycerophospholipid