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It is necessary to fulfil the demand of food due to the increasing population in the world, biological principles are applied in animal husbandry and plant breeding. Animal husbandry, dairy farm, poultry farm, animal breeding, management of farm animals etc are included. In Plant breeding, it is purposeful management of plant species in order to create desired plant species.
Ques – Find out the organism which is the source of SCP .......
- Spirulina
- Paramoecium
- Mushroom
- Buffers
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Ans: A
SCP means single cell protein, it is produced by different micro organism so it is also called microbial biomass and different micro organism is responsible to produce that biomass and one of the micro organism are Spirulina, Blue green algae (BGA), methylophilus and methylotrophus. Single cell protein can be use as food as well as fodder. It is the richest source of protein.
Ques - The pathogen free plant are obtained from ........?
- Zygote culture
- Seed
- Shoot meristem culture
- Root culture
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Ans: C
Apical meristem is used for production of pathogen free plants because it is free from the infection. Option C represents apical meristem.
Ques - Which of the following processes includes, bringing wild species of plant under cultivation to suit human need?
- Cultivation
- Hybridization
- Domestication
- Selection
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Ans: C
Domestication means the process includes bringing wild species of plant under cultivation of suit human or under the management of human
Ques - What is the main cause of hybrid vigour?
- Homozygosity
- Mitosis
- Germination
- Heterozygosity
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Ans: C
Hybrid vigour means heterosis, its is possible only in heterozygosity
Ques - Sharbati Sonora and safed lerma are high yielding varieties of ...... ?
- Bajra
- Wheat
- Sugar cane
- Nutmeg
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Ans: B
Sharbati Sonora and safed lerma are the varieties of wheat
Ques- Tobacco mosaic disease is caused by .......
- Bacteria
- Protozoan
- Viruses
- Rickettsia
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Ans: C
TMV is tobacco mosaic virus and turnip mosaic virus
Ques - Golden rice is a genetically modified crops in which the incorporated gene is meant for the biosynthesis of
- Niacin
- Beta carotene
- Pantothenic acid
- Riboflavin
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Ans: B
Beta carotene helps to biosynthesis of vitamin A, golden rice is a concept for to fulfil the vitamin A in vitamin A deficient people. Niacin is for vitamin B3, Pantothenic acid for vitamin B5 and riboflavin is for vitamin B2
Ques - An improved insect resistant variety pusa gaurav is a variety of .......
- Brassica
- Bhindi
- Cowpea
- Chilli
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Ans: A
Brassica is mustard, Bhindi means okra and chilli means pusa sadabahar
Ques - The explant is sterilized by ...... % of hydrogen peroxide?
- 1%
- 10%
- 70%
- 100%
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Ans: B
In concept of sterilization, Sodium hypochlorite- 1% , Ethyl alcohol- 70% and hydrogen peroxide is 10%
Ques - Callus is produced by division of .......
- Explant
- Sapling
- Embryo
- Clone
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Ans: A
The ability of division in cells of plant is called explant, after growing explant there will be loosely bound unorganized mass called callus, callus is used to produce different organs called organogenesis. Without division of explant callus cannot be produced.
Ques - Which hormone is required for Caulogenesis?
- Auxins
- ABA
- Cytokines
- Ethylene
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Ans: C
Caulogenesis means formation of shoot and cytokinus is used as a growth hormone, In Rhizogenesis means root formation, and hormone responsible for root formation is auxins.
Ques - In which method agitator is used ?
- Embryo culture
- Bio fortification
- Suspension culture
- Symbiosis
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Ans: C
In suspension culture, the agitator rotates at 100- 250 rpm. The four basic purposes of agitators are aeration, mixing, aggregation, and growth. Bio fortification is used to increase the nutritional value in food.
Ques – Which technique is used to solve human nutrition problems?
- Single cell protein
- Biofortification
- Biogas production
- Pasteurisation
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Ans: B
Biofortification technique is used to increase the nutritional value in food. In single cell protein technique nutritional value is already present.
Ques - Hybrid maize has double the quantity of amino acid ......
- Lysine and tryptophan
- Arginine and asparagine
- Cystine and methionine
- Proline and glutamine
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Ans: A
Lysine and tryptophan are present in double quantities in hybrid maize while other things (option B, C, D) are also amino acids but absent in hybrid maize.
Ques - An improved variety pusa sawani resistant to shoot and fruit borer is that of
- Cabbage
- Okra
- Moong
- Bajra
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Ans: B
Scientific name of Bhindi is okra, sawni is related to okra.
Ques - Somatic hybridization is achieved through......
- Polymerisation
- Conjugation
- RNA mutation technology
- Protoplast fusion
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Ans: D
Fusogenic agent i.e. PEG (polyethylene glycol) agent is used in protoplast fusion. You need to take two body cells of protoplast and fused them by using agent PEG.
Ques - The puffed up appearance of dough in bakery is due to........
- CO2 production during fermentation of yeast
- CO2 production during aerobic respiration by yeast
- Death of yeast
- Spoiling of the dough due to death of yeast and production of many gases
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Ans: A
Puffiness will come when CO2 bubbles trap during fermentation
Ques - The organism used for alcohol fermentation is
- Penicillium
- Pseudomonas
- Aspergillus
- Saccharomyces
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Ans: D
Saccharomyces is used for fermentation of alcohol
Ques – Which one has the largest species variety in India?
- Wheat
- Maize
- Rice
- Potato
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Ans: C
Rice is the largest species variety in India
Ques - In plant tissue culture which of the following shows totipotency......?
- Xylem vessel
- Sieve tube
- Meristem
- Collenchyma
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Ans: C
Meristem has the ability of division. The cell has the ability to develop or differentiate into a mature plant, this ability is called totipotency and the particular cell is known as totipotent cell. Option A and B are dead tissue and option D is permanent tissue.
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