Biology Selected Questions and Answers Set 31

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Q.1:- According to the World Health Organization (WHO), the disease which causes the death of the largest number of people today is ? [IAS (Pre) Exam 1996]

  1. AIDS
  2. Tuberculosis
  3. Malaria
  4. Ebola

Q.2:- Which one of the following statements regarding starch and cellulose is not correct ? [IAS (Pre) Exam 1998]

  1. Both of them are of plant origin
  2. Both of them are polymer
  3. Both of them give colour with iodine
  4. Both of them are made up of glucose molecules

Q.3:- What is the average fat content in buffalo milk ? [IAS (Pre) Exam 1997]

  1. 2%
  2. 5%
  3. 0%
  4. 0%

Q.4:- Nosocomial infection is ? [SCRA Exam 2014]

  1. Acquired from ‘Nose’ of humans
  2. Acquired from nasal cavity of animals
  3. Hospital acquired
  4. An endemic disease

Q.5:- Who discovered the polio vaccine ? [CDS Exam 2007]

  1. Louis Pasteur
  2. Konrad Zuse
  3. Eli Whitney
  4. Jonas Salk

Q.6:- A medicine bottle containing tablets or capsules, a small pouch of silica get is kept to ? [SSC Exam 2013]

  1. Absorb Moisture
  2. Absorb Gases
  3. Keep the bottle warm
  4. Kill bacteria

Q.7:- Which one among the following elements / ions is essential in small quantities for development of healthy teeth but causes mottling of the teeth if consumed in higher quantities ? [CDSI Exam 2011]

  1. Iron
  2. Chloride
  3. Fluoride
  4. Potassium

Q.8:- Precursor of which one of the following Vitamins comes from Beta-carotene ? [NDA Exam 2015]

  1. Vitamin A
  2. Vitamin C
  3. Vitamin D
  4. Vitamin K

Q.9:- If waste materials contaminate the source of drinking water, which of the following disease will spread ? [SSC CGL Exam 2014]

  1. Scurvy
  2. Typhoid
  3. Malaria
  4. Anaemia
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Q.10:- The causal organism of Polio is a ? [BSSC Exam 2015]

  1. Fungi
  2. Virus
  3. Worm
  4. Bacteria

Q.11:- Genetic material found in cell is ?

  1. DNA
  2. RNA
  3. Protein
  4. Carbohydrate

Q.12:- Unit of heredity is ?

  1. Gene
  2. Chromosomes
  3. Chromatin
  4. None of these

Q.13:- Genetic code is a ?

  1. Singlet
  2. Doublet
  3. Triplet
  4. None of these

Q.14:- The Hydrophilic nature of DNA is due to the presence of ? [SSC Exam 2015]

  1. A number of Hydrogen Bonds
  2. Phosphate Group
  3. Deoxyribose Sugar
  4. Thymine Base

Q.15:- Synthesis of DNA is called ?

  1. Replication
  2. Transcription
  3. Termination
  4. Amination

Q.16:- Sexual reproduction causes genetic variation because of ? [BPSC Exam 2011]

  1. Blending of Genes
  2. Chromosomal Changes
  3. Shuffling of Genes
  4. All of the above

Q.17:- The first cloned animal Dolly was a ? [SSC Exam 2011]

  1. Dog
  2. Rabbit
  3. Cat
  4. Sheep

Q.18:- From the evolutionary point of view, which one among the following is the most primitive animal ?

  1. Dolphin
  2. Otter
  3. Turtle
  4. Walrus

Q.19:- Homologous organs are ?

  1. Dissimilar origin and dissimilar structure
  2. Dissimilar origin but similar function
  3. Similar origin with similar or dissimilar function
  4. Similar origin with dissimilar function

Q.20:- Evolutionary development of a species can be best studied by ?

  1. DNA Analysis
  2. Finding page by carbon dating
  3. Studying fossils of this species
  4. All of the above

Q.21:- When one gene pair hides the effect of the other unit, the phenomenon is referred to as ? [SSC Exam 2015]

  1. Epistasis
  2. Dominance
  3. Mutation
  4. None of the options
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Q.22:- Earth originated in the past period of about ?

  1. 5 Billion Years
  2. 0 Billion Years
  3. 3 Billion Years
  4. 1 Billion Years

Q.23:- Analogous organs are ?

  1. Similar in structure
  2. Similar in function
  3. Similar in structure and function both
  4. Organ are non-function

Q.24:- Early atmosphere contained methane and other hydrocarbons they have been now replaced by ?

  1. Nitrogen
  2. Oxygen
  3. Carbon Dioxide
  4. Hydrogen

Q.25:- Presence of gill in the tadpole of frog indicates that ?

  1. Fish evolved from frog like ancestor
  2. Frogs will have gills in future
  3. Frogs evolved from gilled ancestor
  4. Fishes were amphibious in the past

 

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