Vocabulary and Idioms in Context - General Aptitude - General Aptitude (GA) Previous Year Questions

1

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Identify the CORRECT family possessing the following characters: presence of glucosinolates, tetradynamous stamens, superior ovary with parietal placentation and siliqua type fruit

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2

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Which of the following reduces the transpiration rate when applied to aerial parts of plants?

A

Phosphon-D

B

Paraquat

C

Phenyl mercuric acetate

D

Valinomycin

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3

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

A tube like membrane structure that forms the connection between the endoplasmic reticulum of neighboring cells through plasmodesmata is

A

Desmotubule

B

Desmosome

C

Dictyosome

D

Microtubule

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4

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

The class of enzymes, which catalyze addition of groups to double bonds and non-hydrolytic removal of chemical groups, is

A

oxidoreductase

B

transferase

C

hydrolase

D

lyase

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5

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Anammox organisms carry out

A

anaerobic reduction of NO₃^-

B

anaerobic oxidation of NH₄⁺

C

aerobic oxidation of NH₄⁺

D

aerobic oxidation of NO₂^-

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6

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

The term “paedomorphosis” refers to

A

Accelerated reproductive development as compared to somatic development

B

A transient stage in the developmental event

C

Two independent structures resembling each other, yet performing different functions

D

A form of mimicry

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7

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Which of the following techniques is NOT applicable for evaluating the expression of a transgene?

A

Northern blot

B

RT-PCR

C

Western blot

D

Southern blot

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8

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Which one of the followings is NOT a cryoprotectant for plant tissue?

A

Dimethyl sulfoxide

B

Glycerol

C

Ethylene glycol

D

Liquid nitrogen

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9

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Two similar holotypes are called

A

Monotype

B

Neotype

C

Isotype

D

Syntype

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10

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Identify the CORRECT statements with respect to functioning of ecosystem.
P. A food chain is a series of organisms, each one feeding on the organism succeeding it
Q. Food web presents a complete picture of the feeding relationships in any given ecosystem
R. In ecosystem, energy flows in unidirectional way, whereas nutrients flow in cyclic fashion
S. In biogeochemical cycles, nutrients do not alternate between organisms and environment

A

P, Q

B

P, R

C

R, S

D

Q, R

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11

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Match the name of the diseases with their causal organisms.

Disease	Causal Organism
P. Loose smut of wheat	1. Cercospora personata
Q. Wart disease of potato	2. Alternaria solani
R. Panama disease of banana	3. Synchytrium endobioticum
S. Tikka disease of groundnut	4. Ustilago tritici
	5. Fusarium oxysporum
	6. Erwinia amylovora

(A) P-6, Q-4, R-3, S-2    (B) P-4, Q-6, R-1, S-3
(C) P-4, Q-3, R-5, S-1    (D) P-2, Q-3, R-2, S-6

A

P-6, Q-4, R-3, S-2

B

P-4, Q-6, R-1, S-3

C

P-4, Q-3, R-5, S-1

D

P-2, Q-3, R-2, S-6

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12

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Match the plant products with their sources and the plant parts from which they are obtained.

Product	Source	Plant part
P. Annatto	1. Acacia catechu	i. Seed
Q. Cutch	2. Rubia tinctorum	ii. Leaf
R. Henna	3. Bixa orellana	iii. Root
S. Alizarin	4. Lawsonia inermis	iv. Stem

(A) P-3-ii, Q-4-i, R-2-iii, S-1-iv    (B) P-3-i, Q-1-iv, R-4-ii, S-2-iii
(C) P-2-ii, Q-1-iii, R-4-iv, S-3-i    (D) P-4-ii, Q-3-iv, R-1-iii, S-2-i

A

P-3-ii, Q-4-i, R-2-iii, S-1-iv

B

P-3-i, Q-1-iv, R-4-ii, S-2-iii

C

P-2-ii, Q-1-iii, R-4-iv, S-3-i

D

P-4-ii, Q-3-iv, R-1-iii, S-2-i

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13

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Match the floral structures with the families and representative plant species.

Floral structure	Family	Plant
P. Gynostegium	1. Orchidaceae	i. Ocimum sanctum
Q. Gynostemium	2. Lamiaceae	ii. Cleome gynandra
R. Gynobasic style	3. Capparidaceae	iii. Calotropis procera
S. Gynophore	4. Asclepiadaceae	iv. Vanilla planifolia

(A) P-2-i, Q-3-ii, R-4-ii, S-1-iv    (B) P-3-ii, Q-4-I, R-2-iii, S-1-iv
(C) P-4-iii, Q-1-iv, R-2-i, S-3-ii    (D) P-4-ii, Q-2-iii, R-1-iv, S-3-i

A

P-2-i, Q-3-ii, R-4-ii, S-1-iv

B

P-3-ii, Q-4-I, R-2-iii, S-1-iv

C

P-4-iii, Q-1-iv, R-2-i, S-3-ii

D

P-4-ii, Q-2-iii, R-1-iv, S-3-i

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14

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Identify the INCORRECT statements with respect to plastid transformation.
P. Antibiotic used for selection of trasplastomic plant is spectinomycin
Q. Chances of gene escape from transplastomic plants are high
R. Microprojectile bombardment is the method of DNA delivery
S. Levels of transgene expression are low

A

P, R

B

P, Q

C

Q, S

D

R, S

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15

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

With respect to germination of seeds, the CORRECT sequence of events is
P. Seed imbibes water
Q. Mobilization of starch reserve to embryo
R. Diffusion of gibberellin from embryo to aleurone layer
S. Synthesis of α-amylase in the aleurone layer

A

P, Q, S, R

B

P, R, S, Q

C

R, P, Q, S

D

R, Q, P, S

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16

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Identify the CORRECT statements with regard to the function of plant hormones
P. ABA is synthesized from chorismate and promotes viviparous germination
Q. Auxin induces acidification of cell wall followed by turgour-induced cell expansion
R. Gibberellin-responsive genes become activated by the repression of DELLA protein
S. Cytokinin regulates the G₂ to M transition in the cell cycle

A

P, Q

B

Q, R

C

Q, S

D

P, R

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17

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Lophotrichous bacteria have

A

one flagellum

B

a cluster of flagella at one or both ends

C

flagella that are spread evenly over the whole surface

D

a single flagellum at each pole

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18

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

In aerobic respiration, the final electron acceptor is

A

hydrogen

B

nitrogen

C

sulfur

D

oxygen

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19

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

A process in which fatty acids are shortened by two carbons at a time resulting in release of acetyl-CoA is known as

A

photophosphorylation

B

carboxylation

C

β-oxidation

D

oxidative phosphorylation

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20

2015 · General Aptitude (GA) · General Aptitude · Vocabulary and Idioms in Context

Life Sciences (XL) 2015

Limulus Amoebocyte Lysate (LAL) assay is used to identify the presence of

A

endotoxin

B

exotoxin

C

anthrax toxin

D

tetanus toxin

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