Kerala Agricultural University 2004 M.Sc BioTechnology - Question Paper

PART A (Section I)
1. The intensity ratio of 2 waves is one : 16. The ratio of their amplitude is

(a) one : 16 (b) one : 4
(c) four : one (d) two : 1

2. Which 1 of the subsequent is not known?

(a) HC1O (b) HFO
(c) CIF (d) ICN

3. Which of the subsequent is non-reducing sugar?

(a) Sucrose (b) Maltose
(c) Fructose (d) None of the above

4. The cause of exhibiting Tyndall effect by colloidal particles is

(a) reflection of light (b) refraction of light
(c) polarization of light (d) scattering of light
part - II
1. (13.625)10 = ( )2

(a) 1111.1011
(b) 1101.101
(c) 1011.111
(d) 1001.001

2. obtain a three-digit number with base seven which is identical if we write the number in reverse order with base 11

(a) (632)7 (b) (543)7
(c) (342)7 (d) (361)7

3. The largest perfect square number of 4 digits with base five is

(a) 4411 (b) 3401
(c) 4301 (d) 4311

4. If the length of a simple pendulum is increased by 44%, then what is the improper change in the period?

(a) 10% (b) 22%
(c) 11% (d) 6%
part - III

1. Which kind of base pair separates 1st when DNA is denatured by heating?

(a) AT (b) GC
(c) AT and GC together (d) No base

2. The female gametophte in Angiosperms is

(a) ovule (b) nucellus
(c) embryo sac (d) carpel

3. A family with sympodial stem is

(a) Vitaceae (b) Cucurbitaceae
(c) Rhamnaceae (d) Liliaceae
PART - B
1. Example of episome involved with conjugation of E. coli is

(a) R factor (b) F factor
(b) Sigma factor (d) Rho protein

2.Which of the subsequent bonds is absent in DNA?

(a) Hydrogen bond
(b) Van der Waals’ interaction
(c) Disulphide bond
(d) Hydrophobic interaction

3. Causal oganism of rinder pest in cattle is

(a) bacteria (b) fungus
(c) virus (d) mycoplasma

Earning:   Approval pending.