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]
- AIDS
- Tuberculosis
- Malaria
- Ebola
Q.2:- Which one of the following statements regarding starch and cellulose is not correct ? [IAS (Pre) Exam 1998]
- Both of them are of plant origin
- Both of them are polymer
- Both of them give colour with iodine
- Both of them are made up of glucose molecules
Q.3:- What is the average fat content in buffalo milk ? [IAS (Pre) Exam 1997]
- 2%
- 5%
- 0%
- 0%
Q.4:- Nosocomial infection is ? [SCRA Exam 2014]
- Acquired from ‘Nose’ of humans
- Acquired from nasal cavity of animals
- Hospital acquired
- An endemic disease
Q.5:- Who discovered the polio vaccine ? [CDS Exam 2007]
- Louis Pasteur
- Konrad Zuse
- Eli Whitney
- Jonas Salk
Q.6:- A medicine bottle containing tablets or capsules, a small pouch of silica get is kept to ? [SSC Exam 2013]
- Absorb Moisture
- Absorb Gases
- Keep the bottle warm
- 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]
- Iron
- Chloride
- Fluoride
- Potassium
Q.8:- Precursor of which one of the following Vitamins comes from Beta-carotene ? [NDA Exam 2015]
- Vitamin A
- Vitamin C
- Vitamin D
- Vitamin K
Q.9:- If waste materials contaminate the source of drinking water, which of the following disease will spread ? [SSC CGL Exam 2014]
- Scurvy
- Typhoid
- Malaria
- Anaemia
Q.10:- The causal organism of Polio is a ? [BSSC Exam 2015]
- Fungi
- Virus
- Worm
- Bacteria
Q.11:- Genetic material found in cell is ?
- DNA
- RNA
- Protein
- Carbohydrate
Q.12:- Unit of heredity is ?
- Gene
- Chromosomes
- Chromatin
- None of these
Q.13:- Genetic code is a ?
- Singlet
- Doublet
- Triplet
- None of these
Q.14:- The Hydrophilic nature of DNA is due to the presence of ? [SSC Exam 2015]
- A number of Hydrogen Bonds
- Phosphate Group
- Deoxyribose Sugar
- Thymine Base
Q.15:- Synthesis of DNA is called ?
- Replication
- Transcription
- Termination
- Amination
Q.16:- Sexual reproduction causes genetic variation because of ? [BPSC Exam 2011]
- Blending of Genes
- Chromosomal Changes
- Shuffling of Genes
- All of the above
Q.17:- The first cloned animal Dolly was a ? [SSC Exam 2011]
- Dog
- Rabbit
- Cat
- Sheep
Q.18:- From the evolutionary point of view, which one among the following is the most primitive animal ?
- Dolphin
- Otter
- Turtle
- Walrus
Q.19:- Homologous organs are ?
- Dissimilar origin and dissimilar structure
- Dissimilar origin but similar function
- Similar origin with similar or dissimilar function
- Similar origin with dissimilar function
Q.20:- Evolutionary development of a species can be best studied by ?
- DNA Analysis
- Finding page by carbon dating
- Studying fossils of this species
- 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]
- Epistasis
- Dominance
- Mutation
- None of the options
Q.22:- Earth originated in the past period of about ?
- 5 Billion Years
- 0 Billion Years
- 3 Billion Years
- 1 Billion Years
Q.23:- Analogous organs are ?
- Similar in structure
- Similar in function
- Similar in structure and function both
- Organ are non-function
Q.24:- Early atmosphere contained methane and other hydrocarbons they have been now replaced by ?
- Nitrogen
- Oxygen
- Carbon Dioxide
- Hydrogen
Q.25:- Presence of gill in the tadpole of frog indicates that ?
- Fish evolved from frog like ancestor
- Frogs will have gills in future
- Frogs evolved from gilled ancestor
- Fishes were amphibious in the past
