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Home /PU — University of the Punjab /Biology

Biology BS 2 Semester/Term PU — University of the Punjab 2015

Biology BS 2 Semester/Term PU — University of the Punjab 2015 — page 1

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  • Ayesha Mustafa· 3 days ago

    BS ZOOLOGY first semester Animal diversity ZOOL 101 - university of Punjab 2025

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  • Abubakar· 3 days ago

    Literary criticism

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  • Guest· 4 days ago

    this paper consists of 60 marks but now we have 35 marks paper.

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  • Annie· 5 days ago

    Can you please tell me more past papers please because my exams are starting from next week

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  • Ahmed· 8 days ago

    Did you provide the past papers of the science of society uos?

    1 reply Reply →

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Paper text

UNIVERSITY OF THE PUNJAB

Second Semester 2015

Examination: B.S. 4 Years Programme

Roll No. ...................

PAPER: Biology -1

TIME ALLOWED: 2 hrs. & 30 mins.

Course Code: BIO-111 / .

MAX. MARKS: 50

Attempt this Paper on Separate Answer Sheet provided.

SECTION II

Q. No. 2: Give brief answers of following questions. (10 x

2)

1. Differentiate Prophase of mitosis from Prophase of meiosis.

2. Write structure of an amino acid.

3. Give different types of chromosomes on the basis of centromere.

4. What are Prions?

5. How law of independent assortment is different from law of segregation?

6. What are amphibious plants?

7. Differentiate Primary and Secondary wall on the basis of chemical composition.

8. What is difference between Algae and Fungi?

9. Differentiate between the terms 'Population', 'Community' and 'Ecosystem'.

10. Give the names of six major ecosystems of world.

SECTION III

Q. No. 3: Why meiosis is called reductional division and what is its significance? (5)

Q. No. 4: Define and draw cell cycle. (5)

Q. No. 5: Give structure and function of DNA. (10)

Q. No. 6: Explain structure and function of Endoplasmic reticulum. (10)