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Showing posts with label biology. Show all posts
Showing posts with label biology. Show all posts

Monday 10 August 2015

Cyanide poisoning causes death in seconds because

Question 84 Cyanide poisoning causes death in seconds because

A) It causes Lysis of red blood cells.
B) It causes cardiac arrest.
C) It denatures enzymes of heart/muscle
D) It breaks the electron transport chain

Answer: It breaks the electron transport chain

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Xenobiotics which are inherently resistant to microbial attack are called as

Question 80 Xenobiotics which are inherently resistant to microbial attack are called as:

A) All of the given options
B) Biodegradable
C) Recalcitrant
D) Persistent

Answer: Recalcitrant

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Question 81 The classical Dance of Andhra Pradesh is

A) Kathakali
B) Kuchipudi
C) Odissi
D) Bharatanatyam

Answer: Kuchipudi

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Molybdenum deficiency affects the activity of

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Question 74 Molybdenum deficiency affects the activity of:

A) Nitrate reductase
B) All of the given options
C) chlorate reductase
D) Nitrogenase

Answer: All of the given options

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When one gene pair hides the effect of the other unit, the phenomenon is referred to as

Question 69 When one gene pair hides the effect of the other unit, the phenomenon is referred to as:

A) None of the options
B) Mutation
C) Dominance
D) Epistasis

Answer: Epistasis

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Who discovered the first antibiotic?

Question 66 Who discovered the first antibiotic?

A) Louis Pastour
B) A Fleming
C) W Fleming
D) C Waksman

Answer: A Fleming

Explanation: Alexander Fleming in September 1928 discovered the first antibiotic Penicillin.

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Sunday 9 August 2015

The maximum fixation of solar energy is done by

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Question 57 The maximum fixation of solar energy is done by

A> Protozoa
B> Bacteria
C> Fungi
D> Green plants

Answer: Green plants

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Allantois of Embryo helps in

Question 84 Allantois of Embryo helps in

A> digestion
B> respiration
C> excretion
D> protection

Answer: respiration

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Which one of the following animals belongs to mollusca?

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Question 85 Which one of the following animals belongs to mollusca?

A> Haliotis
B> Hare
C> Hydra
D> Hyla

Answer: Hare

Explanation: Sea hare is a Gastropoda Mollusk.

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Outside the nucleus DNA is found in

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Question 86. Outside the nucleus DNA is found in 

A> Golgi bodies
B> Mitochondria
C> Ribosome
D> Endoplasmic reticulam

Answer: Mitochondria

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Animal protein is called first class protein because it is

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Question 87 Animal protein is called first class protein because it is

A> easily digestible
B> delicious in taste
C> cheaper in the market
D> rich in essential amino acids

Answer: rich in essential amino acids

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Photoperiodism affects

Question 90: Photoperiodism affects

A> All of these
B> Flowering
C> Vegetative growth
D> Fruiting

Answer: Flowering

Photoperiodism affects Flowering

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Question 91 Match the following:
   I                                   II
A. Abscorbic acid           1 . Photosynthetic pigment
B. Chlorophyl                 2. Quencher
C. Carotenoid                 3. Enzyme
4. Superoxide dismutase 4. Vitamin C

        A B C D
A>  4 1 2 3
B>  4 2 1 3
C> 2 4 1 3
D > 4 1 3 2
Answer: 4 1 2 3
Explanation : Carotenoid is Quencher
Superoxide dismutase is an Enzyme
Abscorbic acid contains Vitamin C
Chlorophyl Photosynthetic pigment

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Monday 3 August 2015

Which of the following is/are the possible commercial/industrial application of bacteria?

Post 430
Engineering Services Examination 2015 GAT
Question 69 Consider the following:
1. Adjutant stork
2. Emperor penguin
3. Rattle snake

Which of the above is/are naturally found in India?

A) 1 only
B) 2 and 3 only
C) 1 and 3 only
D) 1, 2 and 3
Answer: 1 only

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Question 70 Which of the following is/are the possible commercial/industrial application of bacteria?

1. Fermentation of sugars
2. Production of vaccines
3. Cleaning of oil spills
Select the correct answer using the code given below:
A) 1 only
B) 2 and 3 only
C) 1 and 3 only
D) 1, 2 and 3
Answer: 1, 2 and 3

Question 71 In the Earth's atmosphere, which of the following have the property of absorbing the heat and contribute to the warming of atmosphere?

1. Carbon monoxide
2. Oxygen
3. Soot
4. Water vapour
Select the correct answer using the code given below:
A) 1  and 2 only
B) 1, 3 and 4 only
C) 4 and 3 only
D) 1, 2 , 3 and 4
Answer: 1, 3 and 4 only

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In which of the above are unicellular organisms found?

Post 421
Engineering Services Examination 2015 GAT

Question 86 Consider the following kinds of organisms:
1. Algae
2. Fungi
3. Protozoa

In which of the above are unicellular organisms found?

A) 1 only
B) 2 and 3 only
C) 1 and 3 only
D) 1, 2 and 3

Answer: 1 and 3 only

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Thursday 23 July 2015

With reference to the wildlife of India, what is Dugong?

Post 400
Engineering Services Examination 2015 GAT

Question 115 Who of the following was honoured as 2014 World Food Prize Laureate?

A) MS Swaminathan
B) Sanjaya Rajaram
C) Ratan Tata
D) NR Narayana Murthy

Answer: Sanjaya Rajaram

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Question 116 With reference to the wildlife of India, what is Dugong?

A) It is a desert gazelle
B) It is a marine mammal
C) It is migratory raptor
D) It is a salt water crocodile

Answer: B) It is a marine mammal

Friday 10 July 2015

Bacterial cells do not have

Post 299

SSC CHSL Questions 2014

Question 165 Bacterial cells do not have

A) Cell wall
B) Plasma membrane
C) Ribosome
D) Mitochondria

Answer: Mitochondria

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Fish is a first class protein as it contains

Post 294

SSC CHSL Questions 2014

Question 156 Fish is a first class protein as it contains

A) essental amino acids
B) non essential amino acids
C) all essential fatty acids
D) no amino acid

Answer: all essential fatty acids



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Question 157  Stem is usually

A) Positively phototropic
B) Negatively phototropic
C) Negatively geotropic
D) Positively acrotropic

Answer: Negatively geotropic

Bulbils takes part in

Post 293

SSC CHSL Questions 2014

Question 153 Resin is a product of

A) Grapes
B) Coniferous tree
C) Rubber tree
D) Banyan tree

Answer: Grapes


Question 154 Water of coconut is

A) liquid nucellus
B) liquid mesocarp
C) liquid endocarp
D) degenerated liquid endosperm

Answer: Degenerated liquid endosperm



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Question 155 Bulbils takes part in

A) Sexual reproduction
B) Vegetative reproduction
C) Food storage
D) Respiration

Answer: Vegetative reproduction

Root Hairs arise from

Post 291

SSC CHSL Questions 2014

Question 200 Root Hairs arise from

A) Cortex
B) Pericycle
C) Epidermis
D) Endodermis
Answer: Epidermis



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A Parenchyma cell which stores ergastic substance is known as

Post 290

SSC CHSL Questions 2014

Question 199 A Parenchyma cell which stores ergastic substance is known as

A) Phragmoblast
B) Idioblast
C) Conidioplast
D) Chloroplast
Answer: Idioblast


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The best example of Polyembryony is

Post 284

SSC CHSL Questions 2014

Question 193 The best example of Polyembryony is

A) Cocoa
B) Capsicum
C) Citrus
D) Cycas
Answer: Citrus


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