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Important Questions for "b.sc,botany":

[1]

  1. Match the following concepts and contributors related to Botany.
  2. Write a short note on Electron Microscopy.
  3. Write a brief note on Lichens.

[2]

  1. What are blood groups? Discuss their inheritance.
  2. If the basic chromosome number is 7 in a class of individuals, what will be the number of chromosomes in the following: (i) Nullisomic, (ii) Monosomic, (iii) Trisomic, (iv) Tetrasomic?
  3. What is the Rhesus (Rh) reaction?

[3]

  1. Give a description of the structure of Deoxyribonucleic Acid (DNA) and compare it with that of Ribonucleic Acid (RNA).
  2. Describe Mendel's first law of heredity.
  3. What is a metacentric chromosome?

[4]

  1. Describe the role of polyploidy in the evolution of wheat and mustard.
  2. What are the different kinds of structural changes of chromosomes? Explain any one in detail.
  3. Write down the contribution of T.H. Morgan in genetics.

[5]

  1. Define incomplete dominance. Describe it with a suitable example.
  2. Discuss briefly the various stages of meiotic cell division.
  3. Describe the following: (i) Character and trait, (ii) Ribosome, (iii) Isochromosomes, (iv) Gene, (v) T.H. Morgan.

[6]

  1. Write the important characteristic features of Pteridophytes.
  2. Write a short note on Mitochondria.
  3. Explain the ultra structure of Bacteria along with diagram.

[7]

  1. Who is regarded as the father of Indian Paleobotany?
  2. Where is the Birbal Sahni Institute of Palaeobotany located?
  3. What is Cycas revoluta popularly called?

[8]

  1. What do you understand by the term Heritage Botany?
  2. Mention the various types of vegetative reproduction in Lichens.
  3. Describe monocyclic, polycyclic and polyetic disease cycles and write a separate note on Etiology.

[9]

  1. Differentiate between Nucleoside and Nucleotide.
  2. Discuss the steps involved in DNA replication.
  3. Discuss the steps involved in gene cloning.

[10]

  1. What is the difference between National Park and Sanctuary?
  2. Write the origin, diversity, improved varieties and different uses of wheat.
  3. Write a note on methods of preparation of tea from tea leaves.

[11]

  1. Describe the structure and floral diagram of female flower of Euphorbia.
  2. Differentiate between Acanthaceae and Lamiaceae.
  3. Explain the formation of monosporic and bisporic embryo sac by giving suitable examples.

[12]

  1. Who is considered the Father of Botany?
  2. Which one is a test cross?
  3. In which process does Molybdenum participate?

[13]

  1. Write short notes on Artificial and Natural systems of classification.
  2. Discuss the basis of Linnaeus' system of classification.
  3. Describe the taxonomic features and economic importance of the family Asteraceae.

[14]

  1. Describe the cell structure of Yeast.
  2. Describe the features of Fusarium fungus.
  3. Give an account on the structure of Bacteriophages.

[15]

  1. Compare the internal structure of sporophytes of Riccia and Marchantia with the help of labelled diagrams.
  2. Describe briefly the internal structure of the thallus of Anthoceros with the help of labelled diagrams.
  3. Describe the classification of Bryophytes studied.

[16]

  1. Write short notes on Entropy and Second messenger system
  2. Write short notes on Types of Replication and Positive and negative regulation of gene expression
  3. Discuss the levels of protein structure

[17]

  1. What is deforestation? Give a brief account of the causes of deforestation in the country.
  2. Explain Little Leaf of Brinjal.
  3. Define noise and noise pollution. Give its effects and methods of control.

[18]

  1. Differentiate between National park & sanctuaries, Pandemic and endemic, Scab and canker, Blight and red rot OR Write short note on Germplasm conservation and Value of biological diversity in food and ecological security
  2. Describe the symptoms, etiology, and control of Late blight of potato and Mosaic diseases
  3. What are the aims and principles of IPM? Describe the role of IPM in pest control

[19]

  1. Write note on structure and properties of amino acids OR Write note on second messengers
  2. Describe the mechanism of protein synthesis OR Write note on vitamins
  3. Write notes on Bioenergetics and Binding technique

[20]

  1. Discuss the role of mutation in agriculture OR Discuss the importance of polyploidy in agriculture
  2. Describe the morphology of Chromosome OR Discuss hybridization with some suitable examples
  3. Discuss the role of plant breeding work on wheat

[21]

  1. Differentiate Solanaceae and Malvaceae based on inflorescence
  2. Describe internal structure of Maize leaf
  3. Describe the development of a typical monocotyledonous embryo with suitable diagrams

[22]

  1. Power House of the Cell
  2. Chromosomal aberrations and their importance
  3. Stages of Meiosis with diagrams

[23]

  1. Describe merits and demerits of Bentham and Hooker system of classification
  2. Describe important floral characters of family Cucurbitaceae
  3. Write short notes on economic importance of family Rutaceae

[24]

  1. Xerophytic ecological character of Casuarina
  2. Structure and function of Nucleus
  3. Describe in brief crossing over

[25]

  1. Three merits of Linnaeus classification
  2. Difference between inter and intrafascicular cambium
  3. Describe important floral characters of family Acanthaceae

[26]

  1. Power house of the cell
  2. Describe briefly significance of Mutation
  3. With the help of labelled diagrams describe the nucleus of the cell

[27]

  1. To obtain haploid plants, what is cultured?
  2. Krebs Cycle takes place in?
  3. Ginger is a stem and not a root because?

[28]

  1. In Agaricus, the reduction division takes place in which structure?
  2. Fiji disease of sugarcane is caused by?
  3. What is the sequence of spore production in Puccinia's life cycle?

[29]

  1. Who is the father of Indian Palaeobotany?
  2. Which of the following is the earliest known plant?
  3. Pollen grains are winged in?

[30]

  1. Lichens form the first community in?
  2. The female sex organ of Polysiphonia is called?
  3. Symbiotic associations occur with which biological groups?

[31]

  1. Which of the following is commonly known as walking fern
  2. A Pteridophyte differs from gymnosperm due to
  3. Coralloid roots have which characteristics

[32]

  1. In Lichen, the fungal component is
  2. The scales on thallus of Marchantia are
  3. Heterocysts are mainly found in

[33]

  1. Describe in detail the technique of hybrid seed production in maize.
  2. Write short notes on the following: Embryo and endosperm, Certified seed, Tassel, Objectionable weeds.
  3. Differentiate between the following: Foundation seed and Breeder seed, Physical purity and Genetic purity.

[34]

  1. Discuss the seed production techniques in rice.
  2. Differentiate between the foundation seed and certified seed.
  3. Write a short note on grow out test.

[35]

  1. Write short notes on Breeder seed, Isolation distance, and Seed Act.
  2. Differentiate between physical purity and genetic purity.
  3. What is a working sample?

[36]

  1. Describe various breeding objectives and breeding procedures used for the genetic improvement of pigeonpea.
  2. Write botanical description and economic importance of groundnut.
  3. Describe the various applications of genetic engineering in crop improvement.

[37]

  1. Describe the technique of emasculation and pollination in pea. Also write the precautions taken during emasculation and pollination.
  2. Describe in brief various breeding objectives and breeding procedures used for the genetic improvement of potato.
  3. Describe the applications of plant tissue culture in crop improvement.

[38]

  1. Write a detailed note on plant variation and its causes.
  2. Define mutation. Discuss the role of mutation breeding in crop improvement.
  3. What is backcross method of breeding? Discuss the procedure of backcross method of breeding in transferring of a dominant gene from one variety to another.

[39]

  1. Differentiate between pedigree method and bulk method of breeding.
  2. Discuss the role of plant breeding in agriculture.
  3. Write short notes on the procedure of back cross method of breeding, utility of allopolyploidy in crop improvement, and apomixis.

[40]

  1. Write in brief about mass selection.
  2. What is polyploidy? Discuss the utility of polyploidy in crop improvement.
  3. What do you mean by plant introduction? Describe the objectives, various steps involved and merits of plant introduction in detail.

[41]

  1. Define Photosynthesis. Discuss the dark reaction in detail.
  2. Discuss the scope and importance of crop physiology in agriculture.
  3. Write a detailed note on osmosis.

[42]

  1. Write a note on annual ring.
  2. Briefly describe the economic importance of Bryophytes.
  3. What is endosperm? Describe the different types of endosperm development. Explain the importance of endosperm.

[43]

  1. Define mutation. Differentiate between spontaneous and induced mutations. Provide a list of chemical and physical mutagens.
  2. Describe different stages of mitotic division in detail.
  3. What kind of inheritance is found for wheat kernel colour?

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