List of top Plant Biotechnology Questions asked in Common University Entrance Test

San Noeum first successfully cultured gynogenic haploid plants from unfertilized ovaries of -
In biological nitrogen fixation conversion of dinitrogen molecule into ammonia is carried out by enzyme.
Arrange the following steps for plant tissue culture (P.T.C.) in correct sequence:
A. Selection of desired material and suitable nutrient media for P. T. C.
B. Inoculation of explants
C. Surface sterilization of explant
D. Transfer of growing cultures
E. Transfer of plantlets to soil in pots
Choose the correct answer from the options given below :
Choose the correct statements regarding plant tissue culture -
A. Organogenesis is inducing the formation of various vegetative organs from cells or tissues.
B. Formation of mass of undifferentiation cells from callus redifferentiation.
C. Cytoplasmic hybrids are prepared by taking the nucleus from one parent and cytoplasm from both the parents.
D. Relative concentration of growth hormones play important role in organogenesis.
Choose the correct answer from the options given below :
Full form of CRISPR, a term used in genome editing is -
In nitrogen cycle, Ammonification is the process of generating ammonia from-
Conversion of ammonia to nitrates is called -
Symbiotic nitrogen fixing bacteria are found in -
A. Azolla
B. Gnetum
C. Anthoceros
D. Cycas
E. Riccia
Choose the correct answer from the options given below :
The process of combining cytoplasmic genomes of one parent with nuclear genome of other parent is called -
'Pomato' a hybrid of potato and tomato was produced through-
Virus free plants can be grown by : -
Arrange the following steps in the process of nitrogen cycle in correct sequence:
A. Nitrogen fixation
B. Nitrification
C. Denitrification
D. Assimilation
E. Ammonification
Choose the correct answer from the options given below :
__________ Molecules of ATP are required to fix one molecule of nitrogen (N2) to 2NH3.
Important enzymes involved in nitrogen fixation are -
Media that contain some chemical with unknown chemical composition is called __________ media.
For obtaining pure cultures of bacteria __________ plate method is not used.
Production of secondary metabolites require the use of -
Select the correct statements regarding somaclonal variations
A. These variations can also result in unwanted traits.
B. Somaclones have been developed and proved advantageous in several crops.
C. These variations can be used to engineer novel traits.
D. Short term invitro callus and cell suspension, cultures results in somaclonal variation.
Choose the correct answer from the options given below :
In plant tissue culture formation of organ primordia-like shoot or root in callus cells is called -
Who is regarded as father of 'Plant Tissue Culture' (P. T. C.)?
The first androgenic haploid plant product by anther culture was from -
Plants having half the somatic chromosome number than found in normal individual are called -
The production of haploids by anther and pollen culture was first demonstrated by -
Inducing the formation of various vegetative organs from cells or tissues in plant tissue culture is called -
Plants cannot absorb molecular nitrogen from the atmosphere because