141. Which of the following explain relay intercropping?
A) Component crops are totally mixed in the available space
B) Component crops arranged in alternate rows
C) Sowing of fast growing crops with a slow growing crop
D) Second crop is sown during growth and often during
fruiting of first crop
142. The shoots and roots of the plant show
A) Negative and positive geotropism respectively
B) Only negative geotropism
C) Only positive geotropism
D) Positive and negative geotropism respectively
143. Bacteria asexually reproduce by
A) Amitosis
B) Meiosis
C) Conjugation
D) Transformation
144. Retina is most sensitive at
A) Optic disc
B) Periphery
C) Macula lutea
D) Fovea centralis
145. Astigmatism can be corrected by wearing
A) Concave lens
B) Convex lens
C) Spherical cylindrical lens
D) Without any lens
146. When the egg does not get fertilized, which hormone
is produced by ruptured follicle?
A) LH
B) FSH
C) Progesterone
D) Thyroxine
147. Pollination by insects is known as
A) Entomophily
B) Anemophily
C) Chiropterophily
D) Ornithophily
148. Vitellogenesis is the process of formation of
A) Vitelline membrane around the developing egg cell
B) Yolk cell membrane around the yolk mass during
development of reptiles and birds
C) Yolk and its deposition within the growing oocyte of
amphibians
D) Archenteron around egg cell
149. During which epoch of Cenozoic era, there was
extinction of large mammals?
A) Oligocene
B) Pliocene
C) Holocene
D) Pleistocene
150. Fossils are found in
A) Rocks
B) Amber
C) Asphalt
D) All of these media
151. Vascular
bundles in a dicot stem are
A) Open, collateral and endarch
B) Closed, collateral and endarch
C) Closed, collateral and exarch
D) Open, collateral and exarch
152. Hard, lignified, thick walled, long and pointed
cells in a plant are
A) Parenchyma
B) Sclerenchyma
C) Collenchyma
D) Sclerids
153. The layer of actively dividing cells of skin is
termed as
A) Stratum compactum
B) Stratum corneum
C) Stratum lucidium
D) Stratum germinativum
154. Alternative forms of a gene are called
A) Loci
B) Multiples
C) Chromosomes
D) Alleles
155. What will be the genotypic ratio of the cross
between Rr X rr?
A) 1:2:1
B) 3:1
C) 1:1
D) 1:1:1
156. Which of the following does not occur within
mitochondria?
A) Krebs cycle
B) Glycolysis
C) ECT
D) ATP Synthesis
157. Cell wall of the plant cell contain pit fields known
as
A) Mitochondria
B) Golgi bodies
C) Plasma membrane
D) Plasmodesmata
158. Which phylum does not have a true coelom?
A) Arthropoda
B) Echinodermata
C) Porifera
D) Annelida
159. Which one of the following kind of animals is
triploblastic?
A) Corals
B) Flatworms
C) Sponges
D) Ctenophores
160. Phylogenetic system of classification is based on
A) Floral characters
B) Evolutionary relationship
C) Morphological features
D) Chemical constituents
