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: A protein complex that links sister chromatids, is 10 marks
   • 3. Genetic information stored in mRNA is translated to polypeptide by
   • 4. Inside the ceil, H202 clearance is brought about by with enzyme the enzyme catalase enzyme isocitrate the enzyme
   • 5. If the ratio between X-chromosomes and autosome genome is equal to 0.5 then the drosophila fly is according to genic balance theory
   • 6. mechanism of sex detcrmination is found in birds is a rare type of translocation in which the broken end gets attached to the telomere end of a non-homologous chromosome
   • 8. is an inactivated X-chromosome found in females at the periphery of the
   • 9. Transcription involves rewriting of the genetic Message
   • 10. The Sigma subunit recognises the signal on DNA
2. Q1 B Answer the following in one sentence 10 marks
   • a. What is the group of proteins in the peroxisomal membrane called?
   • b. Who first introduced the term Mitochondria? What dioecious plants ? Give two examples
   • d. What are paracentric and pericentric inversions? What is splicing? BOTANY — | SEMESTER Ili MARKS-100 DURATION - 3 HRS
3. Q2 Answer the following questions (Any two) 20 marks
   • 1. Explain Ultrastructure of Mitochondria with neat and labelled diagrams
   • 2. What is Glyoxysome? Explain their structure, function and Biogenesis
   • 3. Write difference between Mitosis and Meiosis
   • 4. Explain briefly the structure of DNA
4. Q3 Answer the following questions (Any two) 20 marks
   • 1. What are Chromosomal aberrations? Give the types of
   • 2. Describe XX-XY sex determination system in humans. add a note on baldness in man
   • 3. Joe is a Colorblind male calculate the percentage of affected children of following
   • 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 female and Haemophilia male
   • b. Carrier female and Normal male
5. Q4 Answer the following questions (Any two) 20 marks
   • 1. What is replication? Discuss the three models of replication. Give the list of enzymes in the process of replicaiion
   • 2. Describe Meselson and Sthals experimen: to prove replication of DNA is
   • 3. Discuss the different types of promoters in eukaryotes 4, Explain mechanism of transcription in prokaryotes,
6. Q5 Short Notes (Any four) 20 marks
   • 1. Leptotene
   • 3. Genic Balance theory of sex determination 4, Explain Deletion and its types
   • 5. Central Dogma of protein synthesis
   • 6. Differentiate between prokaryote and Eukaryote replication

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