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Important Questions for "b.sc,botany":

[1]

  1. Match the following concepts and contributors related to Botany.
  2. Give the difference between the structure of Eukaryotic and Prokaryotic cells.
  3. Give the classification of plant diseases in detail. Also, give the classification of plant pathogens in detail.

[2]

  1. Describe Watson and Crick model of DNA structure.
  2. The X chromosome of male is transmitted into male through female. Explain.
  3. What is a lethal factor?

[3]

  1. Describe various numerical changes in chromosome number with illustration.
  2. What do you mean by multiple alleles? Give a brief account of multiple allelism.
  3. Write a short note on lethal factors.

[4]

  1. What do you understand by multiple alleles? Describe it with the help of A, B, O blood group in human beings.
  2. What are the different kinds of structural changes of chromosomes? Explain any one in detail.
  3. Write a short note on chemical mutagens.

[5]

  1. What do you mean by multiple factor hypothesis? Describe it with the help of a suitable example.
  2. Write short notes on the following: (i) Structure of DNA, (ii) Genetic Code, (iii) Mutagen, (iv) Sex-linked characters.
  3. Name two geneticists and describe their contributions for which they were awarded the Nobel Prize.

[6]

  1. Write about the economic importance of Bryophytes.
  2. Write different types of reproduction in Algae.
  3. Write an essay on economic importance of Algae.

[7]

  1. Who is regarded as the father of Indian Paleobotany?
  2. Where is the Birbal Sahni Institute of Palaeobotany located?
  3. What is the collective term for Phellem, Phellogen, and Phelloderm?

[8]

  1. What do you understand by the term Heritage Botany?
  2. Write a note on Biosensors.
  3. What are the major differences between prokaryotic and eukaryotic cell types?

[9]

  1. Differentiate between Nucleoside and Nucleotide.
  2. How do co-enzymes affect the activity of enzymes?
  3. Discuss the steps involved in DNA replication.

[10]

  1. Write the botanical name and families of two spices yielding plants.
  2. Write a note on Van Mahotsava.
  3. Calculate the standard deviation, variance and coefficient of variance from the given table.

[11]

  1. Explain the distinguishing features of family Poaceae and describe its economic importance.
  2. Describe the anomalous secondary growth in the stem of Dracaena.
  3. Write short notes on Double-fertilization and Types of ovules.

[12]

  1. Who is considered the Father of Botany?
  2. What are pollengrains considered as?
  3. Which base is not found in DNA?

[13]

  1. Write the name of the father of Indian embryology.
  2. Describe the taxonomic features and economic importance of the family Asteraceae.
  3. What is double fertilization? Give an account of double fertilization and point out its significance.

[14]

  1. Describe the cell structure of Yeast.
  2. Describe the features of Fusarium fungus.
  3. Describe the Thallus organisation and different modes of reproduction in fungi.

[15]

  1. Write a short note on vegetative reproduction in Lichens.
  2. Describe in detail the economic importance of Algae.
  3. Describe the alternation of generation in Vaucheria.

[16]

  1. Mention the differences between prokaryotic and eukaryotic translation with figures
  2. Differentiate between Ribozymes and Isozymes, TATA box and PRIBNOW box, Inducible and Repressible enzymes, and Somaclonal and Gametoclonal variation
  3. Discuss in detail the RNA polymerase and promoter sequence found in prokaryotes and eukaryotes

[17]

  1. What is the Chipko movement? Describe briefly.
  2. Give a brief account of CO2 enrichment and climate change.
  3. What is Biodiversity? Explain its methods of conservation.

[18]

  1. Differentiate between Deforestation and desertification, Endangered and extinct species, Hydrosphere and atmosphere, BOD and COD OR Write a note on Various tactics employed in forest management and Effect of increasing CO2 concentration on climate
  2. Define plant indicators. Give suitable examples and discuss how these may be used in monitoring the state of the environment
  3. What are the aims and principles of IPM? Describe the role of IPM in pest control

[19]

  1. Describe replication of DNA in eukaryotes OR Describe the properties of genetic code
  2. Write an essay on microbial and environmental biotechnology
  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. Write short note on Inheritance of quantitative characters OR Hybrid Vigour
  3. Describe the role of Biotechnology in Crop improvement

[21]

  1. Describe important character and economic importance of family Ranunculaceae OR Euphorbiaceae
  2. Describe cleavage polyembryony in brief
  3. Explain Taxonomic Literature, Type concept of Botanical nomenclature, and Principle of Taxonomy

[22]

  1. Chromosomal aberrations and their importance
  2. Stages of Meiosis with diagrams
  3. Essay on Chromosomes with Nucleosome model

[23]

  1. Merits and demerits of Engler and Pranti system of classification
  2. Describe merits and demerits of Bentham and Hooker system of classification
  3. Write short notes on economic importance of family Rutaceae

[24]

  1. Write about Detritus food chain
  2. Structure and function of Nucleus
  3. Describe in brief crossing over

[25]

  1. Differentiate monocot and dicot stem
  2. Merits and demerits of Engler and Pranti system of classification
  3. Structural modification in leaves to avoid transpiration

[26]

  1. Discuss briefly about cytoplasmic inheritance
  2. Differentiate between monosomic and trisomic
  3. With the help of labelled diagrams describe the nucleus of the cell

[27]

  1. During photosynthesis, green plants absorb?
  2. Rhizobium is a kind of?
  3. The cuticle is absent in?

[28]

  1. In which type of infection is the host cell completely destroyed?
  2. Aseptate hyphae of fungi are called?
  3. Pythium species cause which plant diseases?

[29]

  1. Who is the father of Indian Palaeobotany?
  2. What is the common name of Equisetum?
  3. In Pinus seeds, there are how many cotyledons?

[30]

  1. Gemmae produced in Gemmae cup are of which type?
  2. Which biological group is used in the preparation of incense and hawan samagris?
  3. Symbiotic associations occur with which biological groups?

[31]

  1. The inner most layer of sporangium of Selaginella is
  2. Rhynia was first discovered by
  3. Pinus seedlings' roots are associated with

[32]

  1. Gemmae are the asexual reproductive bodies of
  2. Which one of the following is an edible lichen
  3. In Bryophytes, the rhizoids are

[33]

  1. What is seed viability? Describe in detail the methods of testing seed viability of wheat seed.
  2. Write detailed notes on the following: Factors affecting seed quality, Factors affecting seed in storage.
  3. Differentiate between the following: Foundation seed and Breeder seed, Physical purity and Genetic purity.

[34]

  1. Write a detailed note on the role of seed industry in India.
  2. Write a short note on embryo and endosperm.
  3. Write a note on isolation distance.

[35]

  1. Write short notes on Breeder seed, Isolation distance, and Seed Act.
  2. Write a note on male sterility and its use in hybrid seed production.
  3. Write a brief note on insecticides.

[36]

  1. Describe pureline selection in wheat.
  2. Describe the various steps involved in the development of synthetic varieties of maize.
  3. Describe composite varieties of maize.

[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 different types of male sterility in plants.

[38]

  1. Write in brief the causes of inbreeding depression.
  2. What is male sterility? Discuss the role of male sterility in hybrid seed production.
  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 clone and pure line.
  2. Write detailed notes on the evolution of wheat and achievements of mutation breeding.
  3. Write short notes on the procedure of back cross method of breeding, utility of allopolyploidy in crop improvement, and apomixis.

[40]

  1. Differentiate between heterosis and inbreeding depression.
  2. What is polyploidy? Discuss the utility of polyploidy in crop improvement.
  3. What is backcross method? Describe the procedure of backcross method of breeding in transferring of a recessive gene from one variety to another in detail.

[41]

  1. Define transpiration. Discuss the factors affecting the rate of transpiration.
  2. Write detailed notes on the following: Photoperiodism and Oxidative Phosphorylation.
  3. Define Photosynthesis. Discuss the dark reaction in detail.

[42]

  1. Write a note on Solenostele.
  2. Briefly describe the economic importance of Bryophytes.
  3. Write a note on polyembryony.

[43]

  1. What are multiple alleles? Give a brief account of multiple allelism with a suitable example.
  2. Differentiate between qualitative character and quantitative character.
  3. Name the sugar found in DNA.

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