Thapar University 2006 B.Tech Biotechnology Biology - Question Paper

BT- 001 : BIOLOGY

Time : 3 hrs,_Instructor: Dr. M. Anand_MM : 36

Note:

   First & Second questions are compulsory. Do any three out of the remaining five questions.

   All parts of the same question should be strictly at the same place.

   The evaluated answer sheets can be seen on 14.12.2006 in DBTES at 12.00 noon.

1.    a) Make a list of 7 pairs of contrasting traits selected by Mendel for    1.75

breeding experiments,

b) Define & Discuss the Menoeis law of segregation & independent    6.0 assortment.

2.    a) Along with suitable diagrams, explain the 3 basic body plans in animals.    3.0

b)    Give reasons for the dominance of seed plants on earth's surface.    2.5

c)    Why are bryophytes called the amphibians of plant kingdom?    1.75

3.    a) Tabulate the differences between green, brown and red algae.    3.0

b)    Differentiate between vegetative and reproductive phases of fungi.    1.5

c)    Give the scientific names of species of algae which (i) is rich in proteins 2.5

(ii) is edible (iii) source of Agar-2 (iv) source of bromine or iodine (v) is parasite on tea and coffee

4.    a) Differentiate between eukaryotic and prokaryotic cells.    2.0

process of mitosis.

5.    a) Why are arthropods the most successful land animals?    2.0

d)    Distinguish between oviparous and viviparous animals.    2.0

6.    a) Name the various components of xylem & phloem tissues. Give an    4.5

illustrative account of vessels and sieve tubes,

b) What is collenchyma? Explain its structure and functions in a plant 2.5 body.

7.    a) Give the importance of sodium chloride in.a living system.    2.0

b)    With the help of a diagram, describe different types of lysosomes and 3.0 their functions.

c)    Match the following cellular organelles with their functions.    2.0

A)

B)

C)