Botany BS 3 Semester/Term PU — University of the Punjab 2012
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BS ZOOLOGY first semester Animal diversity ZOOL 101 - university of Punjab 2025
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Literary criticism
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this paper consists of 60 marks but now we have 35 marks paper.
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Can you please tell me more past papers please because my exams are starting from next week
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Did you provide the past papers of the science of society uos?
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Paper text
UNIVERSITY OF THE PUNJAB
Third Semester 2012
Examination: B.S. 4 Years Programme
PAPER: Botany-III (Cell Biology, Genetics and Evolution) TIME ALLOWED: 2 hrs. & 30 mins.
Course Code: BOT-21300 MAX. MARKS: 60
Attempt this Paper on Separate Answer Sheet provided.
SECTION - II
Short Questions (Total Marks:
30)
Note: Attempt all Questions.
1. Differentiate between the followings. (10 Marks)
i. Monoploid and Haploid
ii. Leucoplasts and Amyloplasts
iii. Karyotyping and Ribotyping
iv. Sex linked and Sex limited Characters
v. Transduction and Transformation
2. Briefly answer the Questions. Each Question carries equal marks. (20 Marks)
i. How does the Fluid Mosaic Model justify the Structure of Cell Membrane?
ii. Briefly discuss the Structural Configuration of Proteins.
iii. What is Inversion? Describe the types of Inversion.
iv. Describe the Role of Mitochondrion in Cellular Metabolism.
v. Write down the Function of DNA Polymerase in Prokaryotes.
vi. What is the central dogma of Molecular Biology?
vii. Describe the sex determination in plants.
viii. Which evidence indicates that many Genes are active only at certain times?
ix. What is Organic Evolution? What contributions did Buffin make to the Concept of Evolution?
x. Describe the importance of Mitosis in Eukaryotes.
Long Questions (05X06=
30)
Note: Attempt all Questions. Each Question carry equal marks.
1. What is Meiosis? Describe the major features of each Meiotic Phase. Why Meiosis is needed for the production of Gametes?
2. Write a short note on the followings:
a. Structural Organization of Chloroplast
b. Construction of Linkage Map
c. Function of Dictyosomes in Plants
3. What is a Dihybrid Cross? Explain the Mendelian's Law of Independent Assortment in elucidating the Inheritance Patterns in Plants.
4. Describe various types of Gene Mutations. Why these are Lethal? Also discuss their Practical Significance.
5. What is Genetic Engineering? Describe in brief various essential Techniques used in Genetic Engineering.
