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Sexual Reproduction in Flowering Plants 5 marks type most important subjective Questions Join @ak4classes

Bio 5 Marks Type Questions Bhej rha hu kuchh der me

Short Answer Questions 1. What is reproduction? Answer: Reproduction is the process by which living organisms produce offspring. 2. Give two examples of insect-pollinated plants. Answer: Rose, Sunflower 3. What is the process by which the egg is released from the Graafian follicle? Answer: Ovulation 4. What term is used to describe the rapid growth of the human population? Answer: Population explosion 5. What is point mutation? Answer: A point mutation is a change in a single nucleotide in DNA. 6. How many stop codons are there? Answer: Three 7. What was the first transgenic organism, and which hormone gene did it possess? Answer: The first transgenic organism was a bacterium, and it possessed the insulin gene. 8. What is the full form of MALT? Answer: Mucosa-Associated Lymphoid Tissue 9. What type of evolutionary development does homologous organs support? Answer: Analogous evolution 10. What is the term for somatic hybrids produced from potato and tomato? Answer: Pomato 11. Which bacterium is referred to as lactic acid bacteria? Answer: Lactobacillus 12. What is the most commonly used vector DNA? Answer: Plasmid DNA 13. Where do xerophytes grow? Answer: Xerophytes grow in dry habitats. 14. Why don't herbivorous animals obtain complete primary productivity? Give one reason. Answer: One reason is that a significant portion of plant biomass is not consumed by herbivores. 15. Who is known as the father of biodiversity? Answer: Sir Robert May 16. What measure can be taken to remove gases like SO2 from polluted air? Answer: Afforestation or planting more trees can help remove pollutants like SO2 from the air.

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JAC Biology most important objective Questions for class 12th If you want subjective questions marks wise then give your reactions (🔥❤️)

Multiple Choice Questions 1. Which of the following does not function as a vegetative propagule? a) Potato tuber with eyes b) Middle part of sugarcane c) Ginger rhizome segment d) Bryophyll segment Answer: b) Middle part of sugarcane 2. A mature angiospermic embryo sac is: a) 7-nucleated and 8-celled b) 8-nucleated and 7-celled c) 7-nucleated and 7-celled d) 8-nucleated and 8-celled Answer: b) 8-nucleated and 7-celled 3. In the female body, the site where fertilization of the egg takes place is: a) Uterus b) Ovary c) Fallopian tube d) Cervix Answer: c) Fallopian tube 4. Which of the following birth control techniques is related to males? a) Vasectomy b) Tubectomy c) Oral pill d) None of these Answer: a) Vasectomy 5. Morgan's work was based on: a) Sand fly b) Housefly c) Fruit fly d) None of these Answer: c) Fruit fly 6. Which of the following is the process of DNA to RNA synthesis? a) Replication b) Transduction c) Transcription d) None of these Answer: c) Transcription 7. The wings of birds and insects are: a) Homologous organs b) Analogous or homologous organs c) Vestigial organs d) None of these Answer: b) Analogous or homologous organs 8. Elephant foot disease is caused by: a) Ascaris lumbricoides b) Entamoeba histolytica c) Wuchereria bancrofti d) Plasmodium vivax Answer: c) Wuchereria bancrofti 9. A new breed of sheep developed in Punjab is: a) Merino and Bikaneri cross b) Assel ram and White Leghorn cross c) Island ram and White Leghorn cross d) Cochin ram and Gassai cross Answer: a) Merino and Bikaneri cross 10. Penicillin is obtained from: a) Aspergillus fumigatus b) Penicillium notatum c) Penicillium griseofulvum d) Streptomyces precius Answer: b) Penicillium notatum 11. DNA fingerprinting uses which process for DNA amplification? a) Polymerase Chain Reaction (PCR) b) Southern blotting c) Northern blotting d) None of these Answer: a) Polymerase Chain Reaction (PCR) 12. Which of the following is included in chemical-based agriculture? a) Fertilizers and pesticides b) Genetically modified crops c) RNA interference d) All of the above Answer: a) Fertilizers and pesticides 13. Plants and animals living in the same area form: a) A biotic community b) An ecosystem c) A biome d) A guild Answer: a) A biotic community 14. Which type of energy pyramid is inverted? a) Grassland b) Trees and plants c) Both d) None of these Answer: d) None of these 15. The Red Data Book provides data on: a) Red flowering plants b) Red-colored fish c) Endangered plants and animals d) Red-eyed birds Answer: c) Endangered plants and animals 16. What does BOD stand for? a) Biological Organism Death b) Biochemical Organic Matter Decay c) Biotic Oxygen Demand d) Biochemical Oxygen Demand Answer: d) Biochemical Oxygen Demand