BSc Sem III 2023 2024 2024 BOTANY II Question Paper - Mumbai University | munotes

Questions asked in this paper

• 3. Figures to the right indicate full marks,

1. Q1 A. Choose the correct option & rewrite the statements: 10 marks
   • 1. The process of DNA replication is affected by an enzyme known as
   • 2. Formation of cell plates starts at
   • 3. enzymes are used to detoxify alcohol
   • 4. Oxysomes of F0-F1 Particles take place on
   • 5. is a chromosomal aberratibn in which a piece or a part of chromosome is transferred to a non homologous chromosome,
   • 6. If the ratio between X-chromosomes and autosome genome is equal to | than the drosophila fly is . according to genic balance theory mechanism of sex determination is found in butterflies
   • 8. The fragments of DNA are joined together by which of the following enzymes?
   • 9. The 3’ to 5’ strand of DNA from which RNA is transcribed is known as att Transcription is catalyzed by enzymes in both prokaryotes and eukaryotes
2. Q1 B Answer the following in one sentence 10 marks
   • a. Where is DNA present in the eukaryotic cells?
   • b. Who discovered ribosomes for the first time?
   • c. Enlist the structural chromosomal aberrations
   • d. What are monoecious plants? Give two examples of it What is Replication?
3. Q2 Answer the following questions (Any two) 20 marks
   • 1. What are Ribosomes? Explain their structure, function and Origin
   • 2. How long is the Process of interphase? VCD/ BOTANY — I SEMESTER Ill MARKS-100 DURATION - 3 HRS
   • 3. What is DNA? Explain different types of DNA
   • 4. Describe the structure and function of Peroxisomes
4. Q3 Answer the following questions (Any two) 20 marks
   • 1. Describe types of Deletions and Duplications
   • 2. Describe with example and suitable crosses a. XX-XY and XX-XO system of sex
   • 3. Colorblindness is a X-linked recessive trait, calculate the percentage of affected children of following crosses
   • 4. With reference to Haemophilia, carry out the following crosses to compute the percentage of progenies affected with the disorder and percentage of progenies not
   • a. Haemophilia male and Normal female
   • b. Haemophilia male and Carrier female
5. Q4 Answer the following questions (Any two) 20 marks
   • 1. Discuss experimental evidence which proved DNA replication is semiconservative
   • 2. Enlist the various enzymes in DNA replication and describe their role in the process of
   • 3. Explain mechanism of RNA synthesis
   • 4. Describe transcription mechanism in Eukaryotes
6. Q5 Short Notes (Any four) 20 marks
   • 1. Pachytene
   • 3. ZZ-ZW mechanism of sex determination
   • 4. Inversion and its types
   • 5. of DNA replication
   • 6. Reformation of DNA helix

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