BSc Botany Sem III 2022 2023 Oct 2023 BOTANY II Question Paper - Mumbai University | munotes

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1. Q1 All questions are compulsory
2. Q2 Figures to right indicate full marks
3. Q3 Draw neat and labeled diagrams wherever necessary
4. Q1 A Choose the correct option from the following 10 marks
5. Q1 Where is DNA present in the eukaryotic cells?
   • a. Inside the nucleus c. With other cellular contents
   • b. Inside the ribosomes d. Not present
6. Q2 The process of DNA replication is affected by an enzyme known as
7. Q3 Genetic information stored in mRNA is translated to polypeptide by
8. Q4 is the type of aberrations that involves the loss of a chromosomal segment
9. Q5 Inheritance of streptomycin resistance or sensitivity in Chlamydomonas is an example of
10. Q6 is an example of monoecious plant is an example of heterogametic females which shows the ZZ-ZW mechanism of sex determination
11. Q8 Super coiling of single-stranded DNA is prevented by
12. Q9 During replication, Okazaki fragments elongate on
    • a. Leading b. Lagging c. Dispersive d. None of the above
13. Q10 The fragments of DNA are joined together by enzymes VCD/ SYBSC SEM III BOTANY II 100 MARKS 3 hours
14. Q1 B Answer the following in one /two sentences each What is the function of DNA? How are the two helical strands wounded? What is translocation? Give its three types 10 marks
    • d. What is Barr body? Give the role of DNA polymerase Answer any two from the following 20 ‘plain the function and biogenesis of Mitochondria are peroxisomes? Explain their structure, function, and biogenesis, are Glyoxysomes? Explain their structure, function, and biogenesis Give details on mitosis from the following 20 the mechanism behind the following crosses
15. Q1 XX-XY b chromosomal aberrations give the types of duplication and inversion 3, Explain colorblindness Genetic Inheritance if the father has colorblindness and the mother is unaffected the mother carries the altered gene causing colorblindness (carrier) and the father is arry out the following crosses to obtain percentages of progenies Carrier female and Hemophilia male, female and normal male any from the following 20 Explain the DNA Replication in Eukaryotes with a neat labeled diagram
16. Q2 How did Messelson and Stahl demonstrate DNA Replication? Add a note on its Give the molecular mechanism of protein synthesis in prokaryotes with a neat labeled the major steps in mRNA processing? Write short notes on any four from the following 20 Significance of Meiosis balance theory in Drosophila Models of replication in DNA replication XXXXXX All the best XXXXX

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