Class-12 Biology Ch-9 Enhancement in Food Production MCQs Exam 2027 New

💁 Ankit Raj

📅 27/02/2026

Class-12 Biology Ch-9 Enhancement in Food Production MCQs Exam 2027

Class-12 Biology Ch-9 Enhancement in Food Production MCQs Exam 2027 Details: नीचे दिए गए सभी Questions Bihar Board परीक्षा 2027 के लिए “Very Very Important Multiple Choice Questions (MCQs) Objective” (अत्यंत महत्वपूर्ण प्रश्न) हैं। इन सभी Class 12th Biology /जीवविज्ञान ) = जीवविज्ञान भाग-1 (English Medium) Book Chapter-9 Enhancement in Food Production का Questions का Solve का वीडियो Youtube और Website पर Upload किया है।

Class-12 Biology Ch-9 Enhancement in Food Production MCQs Exam 2027

Topic 1: Animal Husbandry & Fisheries (पशुपालन एवं मत्स्य पालन)

  1. What is the zoological name of the Indian buffalo? [2026A]

    (A) Bubalus bubalis

    (B) Bos indicus

    (C) Bos bubalus

    (D) None of these

  2. Which of the following is the world’s best milch breed of cow? [2026A]

    (A) Sahiwal

    (B) Holstein-Friesian

    (C) Sindhi

    (D) Devni

  3. ‘Hisardale’ is a breed of which of the following animals? [2026A]

    (A) Cow

    (B) Buffalo

    (C) Sheep

    (D) Hen

  4. The ‘Hisardale’ sheep breed was developed by crossing: [2026A]

    (A) Bikaneri ewes and Marino rams

    (B) Bikaneri ewes and Lohi

    (C) Bikaneri ewes and Tharparkar

    (D) None of these

  5. In a honeybee colony, the ‘worker bees’ are: [2026A]

    (A) Fertile males

    (B) Sterile males

    (C) Fertile females

    (D) Sterile females

  6. Who produces honey in a beehive? [2026A]

    (A) Male bee (Drone)

    (B) Queen bee

    (C) Worker bee

    (D) Both (A) and (B)

  7. What is the main component of honey? [2026A]

    (A) Sucrose

    (B) Maltose

    (C) Fructose

    (D) Galactose

  8. Which species of honeybee is most commonly domesticated? [2026A]

    (A) Apis indica

    (B) Apis mellifera

    (C) Apis dorsata

    (D) Apis florea

  9. Bee-keeping is also known as: [2026A]

    (A) Sericulture

    (B) Pisciculture

    (C) Apiculture

    (D) Tissue culture

  10. What does the Queen bee feed on? [2026A]

    (A) Honey

    (B) Pollen

    (C) Royal Jelly

    (D) Microbes

  11. In which of the following is semen frozen for preservation? [2026A]

    (A) Liquid Nitrogen

    (B) Refrigerator

    (C) Ice

    (D) All of these

  12. What is the benefit of Artificial Insemination? [2026A]

    (A) Semen can be preserved for a long time

    (B) Breeding in remote areas

    (C) Use of superior males

    (D) All of these

  13. MOET (Multiple Ovulation Embryo Transfer) is used for: [2026A]

    (A) Cattle

    (B) Sheep

    (C) Buffalo

    (D) All of these

  14. Pisciculture is related to the rearing of: [2026A]

    (A) Aquatic animals (Fish)

    (B) Silk moths

    (C) Honeybees

    (D) Lac insects

  15. The production of fish in water is called: [2026A]

    (A) Pisciculture

    (B) Aquaculture

    (C) Sericulture

    (D) Apiculture

  16. Catla fish is found in: [2026A]

    (A) Fresh water only

    (B) Marine water only

    (C) Both

    (D) None

  17. ‘Paradip’ is a variety of which fish? [2026A]

    (A) Rohu

    (B) Catla

    (C) Marine fish

    (D) Fresh water fish

  18. Fish meat is rich in: [2026A]

    (A) Vitamins

    (B) Proteins

    (C) Fats

    (D) Carbohydrates

  19. ‘Blue Revolution’ is related to the production of: [2026A]

    (A) Fish

    (B) Oilseeds

    (C) Milk

    (D) Honey

  20. Which of the following is NOT a poultry disease? [2026A]

    (A) Ranikhet

    (B) Cholera

    (C) Smut

    (D) Bird flu

  21. In which animal is the ‘Ranikhet’ disease found? [2026A]

    (A) Hens

    (B) Cows

    (C) Pigs

    (D) Sheep

  22. Which of the following poultry diseases is caused by a virus? [2026A]

    (A) Cholera

    (B) Ranikhet

    (C) T.B.

    (D) Anthrax

  23. What is the cause of ‘Fowl Pox’? [2026A]

    (A) Bacteria

    (B) External parasite

    (C) Virus

    (D) Internal parasite

  24. Coccidiosis in poultry is caused by: [2026A]

    (A) Protozoa

    (B) Nematode

    (C) Virus

    (D) Tapeworm

  25. Which is a fungal disease found in poultry? [2026A]

    (A) Coccidiosis

    (B) Coryza

    (C) Aspergillosis

    (D) Marek’s disease

  26. Which of the following is an advanced breed of hen? [2026A]

    (A) Jersey

    (B) Leghorn

    (C) Himgiri

    (D) Kalyan Sona

  27. ‘Foot and Mouth Disease’ in animals is caused by: [2026A]

    (A) Bacteria

    (B) Fungus

    (C) Virus

    (D) Protozoa

  28. Which protein is found in silk thread? [2026A]

    (A) Fibroin

    (B) Albumin

    (C) Keratin

    (D) Fibrinogen

  29. What is the main food of silk moths? [2026A]

    (A) Mulberry leaves

    (B) Mango leaves

    (C) Neem leaves

    (D) None of these

  30. Which is NOT included in Animal Husbandry? [2026A]

    (A) Apiculture

    (B) Pisciculture

    (C) Poultry

    (D) Organic Farming

Topic 2: Plant Breeding & Tissue Culture (पादप प्रजनन एवं ऊतक संवर्धन)

  1. Plant breeding is used for: [2026A]

    (A) Disease resistance

    (B) Improved quality

    (C) Increased yield

    (D) All of these

  2. ‘Sonalika’ and ‘Kalyan Sona’ are high-yielding varieties of: [2026A]

    (A) Rice

    (B) Wheat

    (C) Maize

    (D) Cotton

  3. ‘Sonalika’ is a variety of which crop? [2026A]

    (A) Maize

    (B) Rice

    (C) Wheat

    (D) Pea

  4. ‘Kalyan Sona’ is a variety of: [2026A]

    (A) Wheat

    (B) Gold

    (C) Rice

    (D) Both (A) and (C)

  5. ‘Sharbati Sonora’ is which type of variety? [2026A]

    (A) Mutant variety

    (B) Hybrid variety

    (C) Desi variety

    (D) Foreign variety

  6. ‘Norin-10’ is a dwarfing gene of: [2026A]

    (A) Rice

    (B) Maize

    (C) Wheat

    (D) Bajra

  7. ‘Taichung-1’ is a variety of: [2026A]

    (A) Rice

    (B) Wheat

    (C) Maize

    (D) Sugarcane

  8. ‘Jaya’ and ‘Ratna’ are varieties of: [2026A]

    (A) Wheat

    (B) Rice

    (C) Mustard

    (D) Pea

  9. How many varieties of Basmati rice are grown in India? [2026A]

    (A) 20

    (B) 15

    (C) 27

    (D) 5

  10. Which vitamin is found in abundance in ‘Golden Rice’? [2026A]

    (A) Vitamin A

    (B) Vitamin $B_{12}$

    (C) Vitamin D

    (D) Vitamin C

  11. ‘Shakti’, ‘Rattan’ and ‘Protina’ are lysine-rich varieties of: [2026A]

    (A) Rice

    (B) Maize

    (C) Wheat

    (D) Cotton

  12. How are hybrid varieties of maize obtained? [2026A]

    (A) Induced mutation

    (B) Crossing two inbred lines

    (C) Seed dispersal

    (D) Selection

  13. Maize is generally rich in: [2026A]

    (A) Thiamine

    (B) Lysine

    (C) Methionine

    (D) Cystine

  14. ‘Parbhani Kranti’, resistant to Yellow Mosaic Virus, is a variety of: [2026A]

    (A) Okra (Bhindi)

    (B) Chilli

    (C) Cauliflower

    (D) Tomato

  15. ‘Pusa Shubhra’ is a variety of: [2026A]

    (A) Wheat

    (B) Cauliflower

    (C) Chilli

    (D) Cabbage

  16. The yellow mosaic resistant variety of mung bean ‘PM-1’ was developed by: [2026A]

    (A) Mutation breeding

    (B) Hybridization

    (C) Selection

    (D) None of these

  17. Mutation breeding was used to develop Yellow Mosaic Virus resistance in: [2026A]

    (A) Mung bean

    (B) Rice

    (C) Wheat

    (D) Cotton

  18. ‘White Rust’ disease in wheat is caused by: [2026A]

    (A) Puccinia

    (B) Albugo

    (C) Ustilago

    (D) Cystopus

  19. ‘Green Revolution’ is mainly associated with: [2026A]

    (A) Maize

    (B) Sugarcane

    (C) Fish

    (D) Wheat

  20. Norman Borlaug is associated with: [2026A]

    (A) White Revolution

    (B) Green Revolution

    (C) Blue Revolution

    (D) Yellow Revolution

  21. The capacity of a plant cell to generate a whole plant is called: [2026A]

    (A) Cloning

    (B) Somaclonal variation

    (C) Totipotency

    (D) Allelopathy

  22. The ability to generate a whole plant from an explant is: [2026A]

    (A) Tissue culture

    (B) Pluripotency

    (C) Totipotency

    (D) Micropropagation

  23. What is possible in Micropropagation? [2026A]

    (A) Asexual reproduction

    (B) Sexual reproduction

    (C) Both (A) and (B)

    (D) None of these

  24. Somaclonal variations are obtained through: [2026A]

    (A) Tissue culture

    (B) Gamma rays

    (C) Hybridization

    (D) Chemical mutation

  25. Which chemical is used for Protoplast Fusion? [2026A]

    (A) PEG (Polyethylene Glycol)

    (B) Ethylene

    (C) $CO_2$

    (D) None of these

  26. A plant cell without a cell wall is called: [2026A]

    (A) Proplast

    (B) Protoplast

    (C) Nucleoplasm

    (D) Explant

  27. ‘Pomato’ is a somatic hybrid between: [2026A]

    (A) Potato and Brinjal

    (B) Potato and Tomato

    (C) Tomato and Chilli

    (D) Sweet potato and Potato

  28. Virus-free plants can be obtained through: [2026A]

    (A) Embryo culture

    (B) Meristem culture

    (C) Protoplast culture

    (D) Anther culture

  29. In callus culture, root formation is induced by: [2026A]

    (A) Gibberellin

    (B) Cytokinin

    (C) Auxin

    (D) Ethylene

  30. Hybridoma is used for: [2026A]

    (A) Production of somatic hybrids

    (B) Killing cancer cells

    (C) Synthesis of antibiotics

    (D) Synthesis of monoclonal antibodies

  31. Biofortification refers to: [2026A]

    (A) Improving nutritional quality of crops

    (B) Accumulation of toxins

    (C) Single cell protein

    (D) Eutrophication

  32. Which of the following is an example of Single Cell Protein (SCP)? [2026A]

    (A) Nematodes

    (B) Spirulina

    (C) Pheretima

    (D) Salmon

  33. Which toxic protein is secreted by Bacillus thuringiensis? [2026A]

    (A) Tubulin

    (B) Insulin

    (C) Cry protein

    (D) All of these

  34. Bt Cotton is resistant to: [2026A]

    (A) Insects

    (B) Weeds

    (C) Drought

    (D) Salinity

  35. Which nematode infects the roots of tobacco plants? [2026A]

    (A) Bacillus thuringiensis

    (B) Cry IAC

    (C) Meloidogyne incognita

    (D) Both (A) and (B)

Topic 3: Microbes in Human Welfare (मानव कल्याण में सूक्ष्मजीव)

  1. Which vitamin increases when milk is converted to curd? [2026A]

    (A) Vitamin $B_{12}$

    (B) Vitamin A

    (C) Vitamin C

    (D) Vitamin $B_6$

  2. Which microbe is used in making Bread? [2026A]

    (A) Saccharomyces cerevisiae

    (B) Lactobacillus

    (C) Streptococcus

    (D) Aspergillus

  3. Which bacteria is used to make ‘Swiss Cheese’? [2026A]

    (A) Propionibacterium sharmanii

    (B) Lactobacillus

    (C) Penicillium

    (D) None of these

  4. ‘Toddy’ is made from the sap of which plant? [2026A]

    (A) Coconut

    (B) Palm

    (C) Date

    (D) Sugarcane

  5. Which microbe is used to produce alcohol from sugar? [2026A]

    (A) Bacteria

    (B) Yeast

    (C) Fungus

    (D) Amoeba

  6. Who discovered fermentation? [2026A]

    (A) Louis Pasteur

    (B) Alexander Fleming

    (C) Watson

    (D) Mendel

  7. Who discovered Penicillin? [2026A]

    (A) Louis Pasteur

    (B) Alexander Fleming

    (C) Waksman

    (D) Robert Koch

  8. Who coined the term ‘Antibiotic’? [2026A]

    (A) Waksman

    (B) Pasteur

    (C) Fleming

    (D) Lister

  9. Antibiotics are mainly obtained from: [2026A]

    (A) Fungi

    (B) Bacteria

    (C) Both (A) and (B)

    (D) Viruses

  10. Streptokinase is obtained from: [2026A]

    (A) Streptococcus bacteria

    (B) Fungus

    (C) Virus

    (D) Algae

  11. Statin, the blood cholesterol lowering agent, is obtained from: [2026A]

    (A) Monascus purpureus

    (B) Aspergillus

    (C) Penicillium

    (D) Yeast

  12. What is the best source of Citric Acid? [2026A]

    (A) Aspergillus niger

    (B) Rhizopus

    (C) Mucor

    (D) None of these

  13. Where are Methanogens found? [2026A]

    (A) Rumen of cattle

    (B) Biogas plant

    (C) Polluted water

    (D) Both (A) and (B)

  14. Biogas mainly consists of: [2026A]

    (A) $CO_2$

    (B) $H_2$

    (C) $CH_4$

    (D) All of these

  15. Butterfly caterpillars are controlled using: [2026A]

    (A) Pseudomonas

    (B) Trichoderma

    (C) Bacillus thuringiensis

    (D) Baculovirus

  16. Baculoviruses belong to which genus? [2026A]

    (A) Nucleopolyhedrovirus

    (B) Retrovirus

    (C) Rhinovirus

    (D) Influenza

  17. What is used to maintain soil fertility? [2026A]

    (A) Biofertilizers

    (B) Chemical fertilizers

    (C) Both (A) and (B)

    (D) Pesticides

  18. Which helps in making soil fertile? [2026A]

    (A) Pesticide

    (B) Organic manure (Bio-manure)

    (C) Yeast

    (D) None of these

  19. Which biofertilizer is used in paddy fields? [2026A]

    (A) Cyanobacteria

    (B) Yeast

    (C) Fungi

    (D) None of these

  20. Azolla forms a symbiotic relationship with: [2026A]

    (A) Anabaena

    (B) Nostoc

    (C) Rhizobium

    (D) None of these

  21. Which bacteria is found in the roots of leguminous plants? [2026A]

    (A) Rhizobium

    (B) Azotobacter

    (C) Staphylococcus

    (D) Lactobacillus

  22. Which cyanobacteria fixes atmospheric nitrogen? [2026A]

    (A) Nostoc

    (B) Anabaena

    (C) Oscillatoria

    (D) All of these

  23. Which of the following is a fungicide? [2026A]

    (A) Bordeaux mixture

    (B) DDT

    (C) BHC

    (D) 2,4-D

  24. Which statement is false about Organic Farming? [2026A]

    (A) It is cyclic

    (B) Zero waste generation

    (C) Maximum utilization of resources

    (D) Use of chemical fertilizers

  25. The main factor for Acid Rain is: [2026A]

    (A) $CO_2$ and $NH_3$

    (B) $SO_2$ and $NO_2$

    (C) $CO$ and $CO_2$

    (D) $CH_4$ and $CO_2$

Topic 4: Human Health & Disease (मानव स्वास्थ्य एवं रोग)

    1. What type of organism is the pathogen responsible for malaria? [2026A]

      (A) Virus

      (B) Bacteria

      (C) Protozoa

      (D) Nematode

  1. Which of the following is/are responsible for pneumonia in humans? [2026A]

    (A) Streptococcus pneumoniae

    (B) Salmonella

    (C) Haemophilus influenzae

    (D) Both (A) and (C)

  2. Which diseases are transmitted by insect vectors? [2026A]

    (A) Typhoid

    (B) Malaria

    (C) Filaria

    (D) Both (B) and (C)

  3. Interferon secreted by virus-infected cells is which kind of barrier? [2026A]

    (A) Cytokine barrier

    (B) Physical barrier

    (C) Cellular barrier

    (D) Physiological barrier

  4. Which cells are responsible for Humoral Immune Response? [2026A]

    (A) B-lymphocytes

    (B) T-lymphocytes

    (C) Killer lymphocytes

    (D) Macrophages

  5. What is given to a patient to prevent graft rejection? [2026A]

    (A) Immunosuppressant

    (B) Vaccine

    (C) Readymade antibodies

    (D) All of these

  6. Which of the following are primary lymphoid organs? [2026A]

    (A) Bone marrow and tonsils

    (B) Bone marrow and thymus

    (C) Lymph nodes

    (D) Thymus and lymph nodes

  7. Which virus contains the enzyme Reverse Transcriptase? [2026A]

    (A) TMV

    (B) Bacteriophage

    (C) HIV

    (D) All of these

  8. Which drug interferes with the transport of dopamine? [2026A]

    (A) Nicotine

    (B) Hashish

    (C) Morphine

    (D) Cocaine

  9. Which is a blood cholesterol lowering agent? [2026A]

    (A) Statin

    (B) Cyclosporin-A

    (C) Antibiotic

    (D) Streptokinase

Topic 5: General Biology & Applied Microbes (सामान्य जीवविज्ञान एवं प्रयुक्त सूक्ष्मजीव)

  1. Which of the following is a ‘False Fruit’? [2026A]

    (A) Mango

    (B) Lemon

    (C) Paddy

    (D) Apple

  2. Mutation can be induced by: [2026A]

    (A) Infra-red rays

    (B) Gamma rays

    (C) IAA

    (D) Ethylene

  3. Pasteurization of milk is done at: [2026A]

    (A) $63^{\circ} \mathrm{C}$ for 30 minutes

    (B) $100^{\circ} \mathrm{C}$

    (C) $0^{\circ} \mathrm{C}$

    (D) None of these

  4. Cry gene protects which crop from bollworms? [2026A]

    (A) Cotton

    (B) Tea

    (C) Maize

    (D) Wheat

  5. Yeast is a main source of: [2026A]

    (A) Vitamin C

    (B) Riboflavin

    (C) Sugar

    (D) Protein

  6. Preservation of living material in liquid Nitrogen at $-196^{\circ} \mathrm{C}$ is called: [2026A]

    (A) Cryopreservation

    (B) Culture

    (C) In-vitro fertilization

    (D) None of these

  7. Interferon is related to: [2026A]

    (A) Antibacterial

    (B) Antiviral

    (C) Anticancer

    (D) Both (B) and (C)

  8. The first organic acid produced by fermentation is: [2026A]

    (A) Lactic acid

    (B) Oxalic acid

    (C) Citric acid

    (D) Gluconic acid

  9. Insulin (Humulin) is prepared using: [2026A]

    (A) E. coli

    (B) Yeast

    (C) Fungus

    (D) Rat

  10. The instrument used to measure milk quality is: [2026A]

    (A) Lactometer

    (B) Thermometer

    (C) Barometer

    (D) Hydrometer

  11. Which is NOT responsible for vegetative propagation in plants? [2026A]

    (A) Offset

    (B) Bulb

    (C) Rhizome

    (D) Gemmule

  12. Which pair is incorrect? [2026A]

    (A) Cyclosporin-A – From fungus

    (B) Statin – From yeast

    (C) Streptokinase – From bacteria

    (D) Butyric acid – From fungus

  13. Which of the following viruses has reverse transcriptase enzyme? [2026A]

    (A) TMV

    (B) Bacteriophage

    (C) HIV

    (D) All of these

  14. What is taken by the patient to stop graft rejection? [2026A]

    (A) Immunosuppressant

    (B) Vaccine

    (C) To introduce readymade antibodies in the body

    (D) All of these

  15. Which of the following are primary lymphoid organs? [2026A]

    (A) Bone marrow and thymus

    (B) Bone marrow and tonsils

    (C) Lymph nodes

    (D) Thymus and lymph nodes

  16. Which cells are responsible for humoral immune response? [2026A]

    (A) B-lymphocytes

    (B) T-lymphocytes

    (C) Killer lymphocytes

    (D) Macrophages

  17. Pathogen responsible for malaria is: [2026A]

    (A) Virus

    (B) Bacteria

    (C) Protozoa

    (D) Nematode

  18. Which diseases are transmitted by insect vectors? [2026A]

    (A) Typhoid

    (B) Malaria

    (C) Filaria

    (D) Both (B) and (C)

  19. Interferon is a: [2026A]

    (A) Cytokine barrier

    (B) Physical barrier

    (C) Cellular barrier

    (D) Physiological barrier

  20. Dopamine transport is interfered by: [2026A]

    (A) Nicotine

    (B) Hashish

    (C) Morphine

    (D) Cocaine

  21. Vitamin content increased in curd is: [2026A]

    (A) Vitamin A

    (B) Vitamin $B_2$

    (C) Vitamin C

    (D) Vitamin $B_{12}$

  22. Blood cholesterol lowering agent is: [2026A]

    (A) Statin

    (B) Cyclosporin-A

    (C) Antibiotic

    (D) Streptokinase

  23. Incorrect pair is: [2026A]

    (A) Cyclosporin-A — Fungus

    (B) Statin — Yeast

    (C) Streptokinase — Bacteria

    (D) Butyric acid — Fungus

  24. Nitrogen-fixing cyanobacteria: [2026A]

    (A) Nostoc

    (B) Anabaena

    (C) Oscillatoria

    (D) All of these

  25. Butterfly caterpillars are controlled by: [2026A]

    (A) Pseudomonas

    (B) Trichoderma

    (C) Bacillus thuringiensis

    (D) Baculovirus

  26. Which is NOT included in animal husbandry? [2026A]

    (A) Apiculture

    (B) Pisciculture

    (C) Poultry

    (D) Organic farming

  27. Jaya and Ratna are varieties of: [2026A]

    (A) Wheat

    (B) Rice

    (C) Maize

    (D) Bajra

  28. For nitrogen fixation in soil, we use: [2026A]

    (A) Blue-green algae

    (B) Protozoa

    (C) Nematodes

    (D) Wheat plants

  29. Fermentation was discovered by: [2026A]

    (A) Louis Pasteur

    (B) Fleming

    (C) Watson

    (D) Mendel

  30. Penicillin was discovered by: [2026A]

    (A) Fleming

    (B) Pasteur

    (C) Koch

    (D) Waksman

  31. Hybrid maize is obtained by: [2026A]

    (A) Crossing inbred lines

    (B) Mutation

    (C) Seed dispersal

    (D) Selection

  32. Baculoviruses are in which genus? [2026A]

    (A) Nucleopolyhedrovirus

    (B) Retrovirus

    (C) Rhinovirus

    (D) Influenza

  33. Source of citric acid is: [2026A]

    (A) Aspergillus niger

    (B) Rhizopus

    (C) Mucor

    (D) Penicillium

  34. Main component of honey is: [2026A]

    (A) Fructose

    (B) Sucrose

    (C) Maltose

    (D) Galactose

  35. Bt Cotton is resistant to: [2026A]

    (A) Insects

    (B) Drought

    (C) Weeds

    (D) Salinity

  36. Pasteurization temperature for milk: [2026A]

    (A) $63^{\circ} \mathrm{C}$

    (B) $100^{\circ} \mathrm{C}$

    (C) $0^{\circ} \mathrm{C}$

    (D) $37^{\circ} \mathrm{C}$

  37. Term ‘Antibiotic’ was given by: [2026A]

    (A) Waksman

    (B) Pasteur

    (C) Fleming

    (D) Koch

  38. First organic acid from fermentation: [2026A]

    (A) Oxalic acid

    (B) Lactic acid

    (C) Citric acid

    (D) Acetic acid

  39. Main gas in biogas: [2026A]

    (A) Methane ($CH_4$)

    (B) Hydrogen

    (C) Oxygen

    (D) Nitrogen

  40. Bacteria in leguminous plants: [2026A]

    (A) Rhizobium

    (B) Bacteria

    (C) Fungus

    (D) Virus

  41. Statin is obtained from: [2026A]

    (A) Monascus purpureus

    (B) Yeast

    (C) Bacteria

    (D) Fungus

  42. Milk measuring instrument: [2026A]

    (A) Lactometer

    (B) Barometer

    (C) Thermometer

    (D) Hydrometer

  43. Biofertilizer in leguminous plants: [2026A]

    (A) Rhizobium

    (B) Mycorrhiza

    (C) Algae

    (D) None

  44. What does the Queen Bee eat? [2026A]

    (A) Royal Jelly

    (B) Pollen

    (C) Honey

    (D) Water

  45. Plant breeding is for: [2026A]

    (A) Disease resistance

    (B) Improved quality

    (C) Increased yield

    (D) All of these

Bihar Board Class 12th के (Biology/जीवविज्ञान ) = जीवविज्ञान ‘भाग-1 (Englsih Medium) Book Chapter- 9 Enhancement in Food Production के Exam 2027 MCQs Questions Answer Key

प्रश्न संख्याउत्तरप्रश्न संख्याउत्तरप्रश्न संख्याउत्तरप्रश्न संख्याउत्तर
1(A)38(B)75(A)112(D)
2(B)39(C)76(A)113(C)
3(C)40(A)77(A)114(A)
4(A)41(B)78(D)115(A)
5(D)42(B)79(D)116(A)
6(C)43(B)80(C)117(C)
7(C)44(A)81(A)118(D)
8(B)45(B)82(A)119(A)
9(C)46(A)83(B)120(D)
10(C)47(A)84(A)121(D)
11(A)48(B)85(A)122(A)
12(D)49(D)86(A)123(D)
13(D)50(B)87(D)124(D)
14(A)51(C)88(A)125(C)
15(B)52(C)89(D)126(D)
16(A)53(A)90(B)127(B)
17(C)54(A)91(C)128(A)
18(B)55(A)92(D)129(A)
19(A)56(B)93(D)130(A)
20(C)57(B)94(A)131(A)
21(A)58(B)95(A)132(A)
22(B)59(C)96(A)133(A)
23(C)60(D)97(B)134(A)
24(A)61(A)98(C)135(A)
25(C)62(B)99(D)136(A)
26(B)63(C)100(A)137(A)
27(C)64(A)101(D)138(B)
28(A)65(C)102(B)139(A)
29(A)66(A)103(A)140(A)
30(D)67(A)104(A)141(A)
31(D)68(A)105(B)142(A)
32(B)69(B)106(A)143(A)
33(C)70(B)107(D)144(A)
34(A)71(A)108(A)145(D)
35(A)72(B)109(A)
36(C)73(A)110(A)
37(A)74(C)111(D)

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