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

Arrange the following events in Western Blotting experiment in correct order:
A. Protein resolution by PAGE
B. Primary antibody binding
C. Transfer onto nitrocellulose membrane
D. Protein denaturation in loading dye.
Choose the correct answer from the options given below :

The correct combination of somaclonal variant released as a new cultivar is -

K. J. Kasha and coworkers found that following the cross between Hordeum vulgare \(\times\) Hordeum bulbosum, chromosomes of H. bulbosum were eliminated in early zygotic division, so few days after pollination, embryos can be cultured to get haploids. This method is called as -

Optimum pH for protoplast culture is -

Antisense RNA technique is used -

Prions are the -

Using natural predators for the control of pathogens is known as __________ control.

CRISPR-Cas 9 is a gene __________ technique.

Source organism of cry genes is -

Which of the following methods/tools is not used for introduction of recombinant DNA into host cell?

Choose the correct statements regarding Agrobacterium tumefaciens -
A. It is a gram positive round shaped bacterium
B. It is a gram negative rod shaped bacterium
C. It is a photosynthetic spiral bacterium
D. It is also known as 'Natural genetic Engineer'
E. It is capable of naturally transferring DNA into plant genome
Choose the correct answer from the options given below :

Arrange the following steps in the process of somatic hybridization in correct sequence:
A. Plating of fused protoplasts
B. Selection of hybrid cells
C. Protoplast isolation and its treatment with fusion chemical.
D. Transfer of callus to differentiation medium
E. Selection of somatic hybrid plants
Choose the correct answer from the options given below :

Which of the following elements play key role in nitrogen fixation?

A microbial biocontrol agent which control butterfly caterpillars in plants is -

Nitrogen fixing cyanobacteria Anabaena is found in the root pockets of -

Autonomously replicating circular extrachromosomal DNA is called -

What is the function of leghemoglobin present in root nodulus of leguminous plants?

Arrange the basic steps to develop G. M. O. (Genetically modified organisms) in sequence:
A. Transfer of DNA with desired genes to its progeny
B. Identification of DNA with desired genes
C. Introduction of the DNA into the host.
D. Maintenance of introduced DNA in the host.
Choose the correct answer from the options given below :

Haploids can be artificially produced by -
A. Colchicine doubling
B. X-ray treatment
C. Pollen culture
D. Distant hybridization
E. Infrared radiation
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The cutting of DNA at specific locations became possible with the discovery of -

Which of the following converts nitrites to nitrates?

Nitrogen fixation occurs with the help of symbiotic bacteria in -
A. Pea
B. Lettuce
C. Beans
D. Tomato
E. Black gram
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Choose the correct statements regarding cytology of haploids -
A. A haploid in Arabidopsis will have 5 chromosomes.
B. Haploids are found as bivalents at metaphase-I of meiosis.
C. Haploids are found as univalent at metaphase-I of meiosis.
D. The haploids in maize will have 10 chromosomes.
E. The haploids in maize will have 20 chromosomes.
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In biological nitrogen fixation conversion of dinitrogen molecule into ammonia is carried out by enzyme.

Choose the correct statements regarding homozygous diploid plants -
A. They are produced by doubling the chromosome number of haploids.
B. Doubling of chromosome enables the recessive traits to express too.
C. Chromosome doubling is done by Ozone treatment.
D. Chromosome doubling is done by colchicine treatment.
Choose the correct answer from the options given below: