Plant Science Mock Test Series for ICAR, JRF, NABARD, BHU, Pre-PG, AFO, AAO, All Agriculture Exams

Plant Science most important MCQ Questions for ICAR, JRF, NABARD, BHU, Pre-PG, AFO, and Other Agriculture Exams


Plant Science Mock Test Series – 1

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The best quality of lac is obtained from which host tree ?

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The study of differences and similarities in genome structure and organization of different organisms is called

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A genetic marker that is detected as differential mobility of a Protein / DNA fragment or as differential amplification of a DNA sequence present in different individuals is known as

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The quickest way to produce homozygous breeding lines from heterozygous parents is through

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The harmone ABA was first identified and characterized chemically in 1963

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G + C content of prokaryotes is

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The major functions of ABA is/are

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All bacteria having a conjugative plasmid will have

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Pollen basket is the other name for

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Gram-positive bacteria that are characterized by the formation of branching filaments will be called as

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An organic compound produced by plants that is required in small amounts in the diet for the normal growth Of animal organisms is known as

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In 1903, the term ‘cytogenetics’ was coined by

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The proportion Of migrant individuals to the total number (after migration) of individuals in the population is called

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The loose smut of barley is caused by the pathogen called

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The uredospores Of Puccinia graminis are disseminated by

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The adjacent cell of the same fungal hypha brought into communication with each other by means of loops is known

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Use of a DNA or RNA probe to detect the presence of the complementary DNA sequence in cloned bacterial or cultured eukaryotic cells was known as

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In 1925, the terms prokaryotes and eukaryotes was coined by

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In Yr-Wr graph, when regression lines passes above the origin cutting Wr-axis, indicates

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The largest gene found in the genome Of an RNA Virus is

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A gene, which produces a product or phenotype that can be easily and unequivocally detected through simple tests is called as

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The process in which the use Of biologically active sewage sludge to hasten the breakdown of organic matter in raw sewage during secondary treatment is called as

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In Vr-Wr graph, when regression lines passes through the origin, indicates

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The proportion of different alleles of a gene present in a mendeiran population are known as

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The cause of association between two variables can be measured by

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Bacteria are considered to be plant because

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In 1896, the ear to row method of breeding was given by

1896 में, प्रजनन की कान से पंक्ति विधि किसके द्वारा दी गई थी

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In maize first product formed during photosynthesis is

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The origin of maize is from

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Fractional sterilization is :

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The average oil Content of castor seed is :

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In 1964, Opaque-2 mutant of maize was given by

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Insect jelly is composed of

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Ca is needed for synthesis of

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Agrobacterigm rhizogenes cause the formation of

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The synthesis of cell constituent; from Simpler molecules, usually requiring energy is called as

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The sclerotial rot of barley is caused by the pathogen called

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Multiline and mixtures employ a series of resistance genes so that their plant populations together show some resistance to an the races of the pathogen. This type of resistance is often called as

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Pollination between the pollen and stigma within the same flower Of the same plant is called as

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National Plant Protection Training Institute is located at

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Male sterility is employed for the production of

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A sequencing approach that uses several pooled samples simultaneously, greatly increasing sequencing speed was known as

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The plants obtained through genetic engineering contain a gene or genes usually from an unrelated organism are called

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The phenomenon in which highly concentrated aqueous solutions of cryoprotective agents become so viscous at a sufficiently low temperature, that they solidify into a metastable glass state, without ice crystal formation at practical cooling rates is called

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The causal organism Erysiphe graminisSP. Tritici produces

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Bacteriophage is made up of

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The family of locust is

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Plasmodiophora brassicae causes the club root disease of crucifers can be controlled by

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The decomposition of organic nitrogen Compounds, e.g., proteins, by microorganisms with the release of ammonia is called as

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Race specific resistance i.e., resistance that operates against some races of a pathogen and not to others in plants are also known as

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Indian Agricultural Research Institute’ Pusa (Bihar) was shifted to Delhi in the year

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The DNA base sequences interrupting the protein- coding sequences of a gene; these sequences are transcribed into RNA but are cut out of the message before it is translated into protein was known as

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The measure of uncontrolled variation present in a sample is called

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Burgundy mixture contains sodium carbonate in place of CaC03 as in Bordeaux mixture was discovered in the year

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The foot rot Of wheat is caused by the pathogen called

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Loss of chromosome segment is known as

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Wheat protein is called as

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In 1971, the information about ‘Sensor gene’ was given by

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In 1969, the information about ‘Integrator gene’ was given by

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A gene in pest which is able to break down the gene of the pest resistance in the plant and thus allows the pest to use the plant as a host is called as

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In 1976, the information about ‘Protooncogene to oncogene relationship’ was given by

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first time quarantine is started in India at :

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The ‘black wart disease’ of potato specially confined to Darjeeling hills is caused by the pathogen called

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An asexual fruiting body or reproductive structure in a fungus is commonly known as

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Which is a natural genetic engineer ?

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The Indian born scientist, who was awarded the Nobel prize for DNA synthesis

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The first and subsequent generation progenies of crosses of heterozygous facultative apomicts are called as

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The study of the application of computer and statistical techniques to the management of information was known as

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Gibberellic acid was first discovered from

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Introduction Of DNA into cells by exposing them for very brief periods to high voltage electrical pulses, which is thought to induce transient pores in the plasma lemma is called

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Teichoic acid found in

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The situation in which two different alleles for a trait are expressed unblended in the phenotype of heterozygous individuals is called as

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The book ‘Plant Disease’ written by

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Bacterial transformation was reported by

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A type of antigen-antibody reaction marked by an exaggerated physiological response to a substance in sensitive individuals is called as

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The alleles of a specific gene or all of the genes carried by an organism is called

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The bunt of wheat is caused-by the pathogen called

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Chromosome number Of Arabidopsis is

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Maize that produces kernels in which the starch that is contained within those kernels having at least 99 percent amylopectin, versus the average of 72- 76 percent amylopectin in common starch seed can be referred as

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rDNA technology has application in

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Fusion of male and gametes from the same plant is called

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A localized collection of pus in a cavity formed by tissue disintegration is called

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Isopentenyl adenine is a precursor for

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The powdery mildew of wheat is associated with fungi named

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The compounds, Which act as inhibitors of transpiration rate through their highly specific action on guard cells is called as

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An epidemic development in a variety carrying vertical resistance genes, and a low level of horizontal resistance, leading to heavy economic losses is referred to as

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Which species contain Ti-plasmid i.e, tumour inducing plasmid ?

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Insertion Of normal DNA directly into cells of human beings to correct a genetic defect was known as

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In 1968, the information about ‘Antimutator gene’ was given by

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The differences present among individuals belonging to a single species or to different species is called as

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A gene, one or more forms Of which isassociated with cancer. Many of these are involved, directly or indirectly, in controlling the rate of cell growth was known as

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The frequency of heterozygotes decreases in the progeny after matings among individuals of two previously isolated subpopulations is called as

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The disease damping off seedlings during nursery Stage is caused by the pathogen

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The protective sheath that covers the young shoot of the embryo in plants of the family Gramineae is called as

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The simultaneous manipulation of several characters for genetic improvement of economic yield is called

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Improvement Of yield by making a selection for a component character is called

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Milk protein coagulated by acid is termed as

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A sequence located near the 5′-end of a domain that contains a cluster of DN Aase I hypersensitive sites and is essential for the expression of transcriptional units located within the domain is known as

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When a disease occurs periodically in a widespread area causing devastating damage to crop plants, it is known as

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