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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. Give the difference between Lytic and Lysogenic cycles.

[2]

  1. Describe the structure of chromosome.
  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. Describe Mendel's first law of heredity.
  2. Describe various substages of Prophase I of meiotic cell division. Give significance of meiosis.
  3. Enlist all the seven characters and their traits studied by Mendel.

[4]

  1. Discuss Mendel's laws of inheritance briefly. Which law do you think is the most important and why?
  2. Write down the contribution of T.H. Morgan in genetics.
  3. Describe the double helical structure of DNA.

[5]

  1. Describe the autobiography of G.J. Mendel. Why did he select pea plants for his experiments?
  2. Define incomplete dominance. Describe it with a suitable example.
  3. Write short notes on the following: (i) Structure of DNA, (ii) Genetic Code, (iii) Mutagen, (iv) Sex-linked characters.

[6]

  1. Write a note on Mycorrhiza.
  2. Write a short note on Mycoplasma.
  3. Write about the economic importance of Bryophytes.

[7]

  1. Who is regarded as the father of Indian Paleobotany?
  2. Where is the Birbal Sahni Institute of Palaeobotany located?
  3. What is an example of a Cladode?

[8]

  1. What do you understand by the term Heritage Botany?
  2. Define Disease and mention its various causes with examples.
  3. How will you identify a smut, a rust and a wilt disease?

[9]

  1. Differentiate between Nucleoside and Nucleotide.
  2. Explain the characteristics of different forms of DNA.
  3. Describe micro-propagation and how it is achieved.

[10]

  1. What is the difference between National Park and Sanctuary?
  2. Describe the aim, scope and importance of palynology.
  3. Calculate the standard deviation, variance and coefficient of variance from the given table.

[11]

  1. What is the significance of botanical garden?
  2. Describe the system of classification of angiosperms proposed by Bentham and Hooker.
  3. Write short notes on Double-fertilization and Types of ovules.

[12]

  1. Who is considered the Father of Botany?
  2. When can the structure of chromosome be best seen?
  3. Which one is a test cross?

[13]

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

[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. Compare the internal structure of sporophytes of Riccia and Marchantia with the help of labelled diagrams.
  2. Describe briefly the structure of a cyanobacterial cell with the help of labelled diagrams.
  3. Describe the classification of Bryophytes studied.

[16]

  1. Mention the differences between prokaryotic and eukaryotic translation with figures
  2. Discuss the role of microbes in biotechnology
  3. Discuss the levels of protein structure

[17]

  1. Write a short note on hotspots of biodiversity.
  2. Describe symptoms, disease cycle, and control of red rot disease of sugarcane.
  3. What is Biodiversity? Explain its methods of conservation.

[18]

  1. Discuss the effects of radioactive pollution OR Describe Red rot of Sugarcane
  2. Discuss in detail the sources, effects, and causes of thermal and noise pollution
  3. Define plant indicators. Give suitable examples and discuss how these may be used in monitoring the state of the environment

[19]

  1. Describe replication of DNA in eukaryotes OR Describe the properties of genetic code
  2. Write an essay on structure and properties of polysaccharides
  3. Write notes on Bioenergetics and Binding technique

[20]

  1. Describe history of plant breeding in brief OR Discuss sex determination in plants
  2. Write an essay on Chromosomal aberrations
  3. Describe the 'Sex linked inheritance' with suitable examples

[21]

  1. Differentiate Asteraceae and Poaceae based on inflorescence
  2. Discuss anomalous secondary growth in Chenopodium
  3. Draw the floral diagram and floral formulae of Acacia sp.

[22]

  1. Structure and function of Ribosomes
  2. Chromosomal aberrations and their importance
  3. Essay on Chromosomes with Nucleosome model

[23]

  1. Differentiate monoadelphous and diadelphous stamen
  2. Describe merits and demerits of Bentham and Hooker system of classification
  3. Describe important floral characters of family Cucurbitaceae

[24]

  1. Xerophytic ecological character of Casuarina
  2. Write about Detritus food chain
  3. Describe in brief crossing over

[25]

  1. Three merits of Linnaeus classification
  2. Differentiate monocot and dicot stem
  3. Merits and demerits of Engler and Pranti system of classification

[26]

  1. Differentiate between monosomic and trisomic
  2. Draw a labelled diagram of T.S. Hydrilla stem
  3. Discuss the sex determination in plants with the help of suitable examples

[27]

  1. Regma fruit is found in which family?
  2. Which part of a potato is eaten?
  3. The axis of an inflorescence is known as?

[28]

  1. What is the nature of the fruiting bodies of Polyporus species?
  2. In Agaricus, the reduction division takes place in which structure?
  3. Bacterial flagellum is composed of?

[29]

  1. Who is the father of Indian Palaeobotany?
  2. Amphiphloic siphonostele is found in the rhizome of?
  3. Nodal diaphragm in Ephedra is made of?

[30]

  1. False branching is observed in which cyanobacteria?
  2. Which lichen appears as if it is painted on rocks?
  3. Which algae are known for their high edible protein content?

[31]

  1. Largest sperms are found in
  2. Spore development type in Pteridium and Nephrolepis
  3. A stele without central pith is called as

[32]

  1. The example of false branching is
  2. In India, which place is called 'The Golden Mine of Liverwort'
  3. Lichen is a symbiotic association of algae with

[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. Write a detailed note on National Seed Corporation.

[34]

  1. What do you understand by seed testing? Explain the method of testing the seed viability in wheat.
  2. Differentiate between physical purity and genetic purity, male sterility and incompatibility, field standard and lab standard.
  3. Write a short note on grow out test.

[35]

  1. What is seed viability? How would you test seed viability of wheat seed? Discuss the method in detail.
  2. Write short notes on Breeder seed, Isolation distance, and Seed Act.
  3. Write a note on causes of seed deterioration.

[36]

  1. Write botanical description and economic importance of groundnut.
  2. Give the list of hybrid varieties developed in jowar, sunflower, rice, cotton, and castor.
  3. Describe composite varieties of maize.

[37]

  1. Describe the various steps involved in the development of hybrid varieties of maize.
  2. Describe pedigree method of breeding in wheat.
  3. Give the list of hybrid varieties developed in sunflower, pigeonpea, bajra, maize and mustard.

[38]

  1. Explain the terms-pureline, clone and inbred.
  2. Write a detailed note on aneuploidy.
  3. Write a detailed note on plant variation and its causes.

[39]

  1. Write a note on chemical mutagens.
  2. Discuss the role of plant breeding in agriculture.
  3. Describe the various kinds of variation and how it is created in plants for their improvement.

[40]

  1. Write in brief about mass selection.
  2. What is the pure line theory?
  3. Differentiate between heterosis and inbreeding depression.

[41]

  1. Define transpiration. Discuss the factors affecting the rate of transpiration.
  2. What is respiration? Describe different steps of aerobic respiration giving suitable sketches.
  3. What is Respiratory Quotient (R.Q.)?

[42]

  1. Write a note on Amber.
  2. Write a note on polyembryony.
  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. Differentiate between qualitative character and quantitative character.
  3. Differentiate between incomplete dominance and co-dominance.

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