- The cytological event that corresponds to
Mendel’s law of independent assortment is seen
in :
(a) Metaphase I (b) Metaphase II
(c) Anaphase I (d) Anaphase II - Inflorescence of Cauliflower is
(a) Corymb (b) Catkin
(c) Umbel (d) Compound corymb - Which of the following organelle is common
between plants and animals?
(a) Chloroplast (b) Centriole
(c) Mitochondria (d) Cell wall - Read the given statements and select the correct
options
I. The amount of biomass or organic matter
produced per unit area over a time period in
plants during photosynthesis is called primary
production.
II. Sugarcane have more efficiency to trap
sunlight, so they accumulate more primary
productivity.
III. Productivity is expressed in g-2 yr-1 or (kcal
m-2) yr-1.
IV. Primary production is expressed in terms of
weight (g-2 ) or energy (kcal m-2).
(a) I , II and III (b) II and IV
(c) I and IV (d) I, II, III and IV - Match the following:
Column I Column II
A. Chargaff 1. Wilkins and Franklin
B. Replicon 2. Uptake of lactose
C. Permease 3. hn-RNA
D. Split gene 4. Length of DNA
E. X-ray diffraction 5. (A+G) = (C+T)
(a) A - 5, B - 4, C - 1, D - 3, E - 2
(b) A - 5, B - 1, C - 2, D - 3, E - 4
(c) A - 5, B - 4, C - 2, D - 3, E - 1
(d) A - 5, B - 4, C - 2, D - 1, E - 3
The DNA fragments separated on an agarose gel
can be visualised after staining with
(a) Acetocarmine (b) Aniline blue
(c) Ethidium bromide (d) Bromophenol blue
- Tunica differs from corpus in
(a) Position (b) Rate of growth
(c) Plane of division (d) Rate of activity - What would happen if oxygen availability to
activated sludge flocs is reduced?
(a) It will slow down the rate of degradation of
organic matter
(b) The center of flocs will become anoxic, which
would cause death of bacteria and eventually
breakage of flocs
(c) Flocs would increase in size as anaerobic
bacteria would grow around flocs
(d) Protozoa would grow in large number - All types of plastids possess essentially the same
structure because they
(a) Perform the same function
(b) Store food materials like starch, fat and
protein
(c) Occur in aerial parts
(d) Can transform from one form to another - Snails and fishes undergo
(a) Hibernation (b) Diapause
(c) Migration (d) Aestivation