BSc Sem VI 2022 2023 Apr 2023 BOTANY FORM AND FUNCTION III Question Paper - Mumbai University | munotes

Questions asked in this paper

• 2. Figures to the right indicate full marks

1. Q1 Answer any TWO of the following: 20 marks
   • A) What are Carbohydrates? Explain the structure of different aldose sugars studied by you
   • B) Define Proteins and describe their general structure. How are they classified?
   • C) Compare and contrast the mechanisms of competitive and non-competitive inhibition in
   • D) What are enzymes? Classify them according to IUB classification citing suitable
2. Q2 Answer any TWO of the following: 20 marks
   • A) Describe the structure and activity of Nitrogenase enzyme complex
   • B) Explain in detail the steps involved in the formation of root nodules
   • C) Write a note on the commercial applications & physiological effects of Cytokinins as
   • D) Explain the role of Abscisic acid as a growth regulator
3. Q3 Answer any TWO of the following: 20 marks
   • A) What are point mutations? Explain missense and nonsense mutations with examples
   • B) What are mutagens? Explain the role 5BU as a mutagen
   • C) Explain the molecular basis of PKU?
   • D) Draw the map of three genes (sc s and v) showing the distance between all pairs of genes by finding out the correct gene order
4. Q4 Answer any TWO of the following: 20 marks
   • A) Three varieties of wheat were sown in 4 plots each and the following yields in quintal per acre were obtained. Analyze with ANOVA whether the three varieties differ in yields or not
   • B) Number of seeds (x) and length of pod (y) are given below. Calculate the regression
   • C) Albino rats were given a drug for 7 days. Their body weight was measured before and after exposure to the drug. Analyse whether the drug has any effect on body weight with the help of paired t — test
   • D) In order to find effect of Azolla growth on rice yield, Azolla was grown in ten plots before rice planting. Ten similar plots were taken as control without Azolla growth. The yield of rice is given in the table. Verify with unpaired t whether there is effect of Azolla growth on
5. Q5 Write short notes on any FOUR of the following: 20 marks
   • c) Denitrification
   • d) Commercial applications of Auxins
   • e) Incomplete linkage
   • g) Degree of freedom in ANOVA
   • h) Applications of t — test

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