laboursonline – MCQs, Mock Tests | Zoology Zoology Scope and Origin Of Life Mcq Question

The study of nuclear cytology is known as:

1. Neurology
2. Mycology
3. Rhinology
4. Karyology

✅ Correct Answer: 4

The study of preservation of life or the study of organisms at low temperature is known as:

1. Kalology
2. Malacology
3. Cryobiology
4. Dermatology

✅ Correct Answer: 3

The study of animals with respect of their environment is termed as:

1. Ecology
2. Cytology
3. Physiology
4. Limnology

✅ Correct Answer: 1

The study of molluscan shells is called:

1. Neurology
2. Conchology
3. Craniology
4. Malacology

✅ Correct Answer: 2

The study of animal behaviour is known as:

1. Ecology
2. Sociology
3. Ethology
4. Anthropology

✅ Correct Answer: 3

The study of snakes is called:

1. Ichthyology
2. Serpentology
3. Herpatology
4. Entomology

✅ Correct Answer: 2

The study of growing old is known as:

1. Genology
2. Generology
3. Gerontology
4. Gynaecology

✅ Correct Answer: 3

The study of interaction of antigens and antibodies in the blood is known as:

1. Serology
2. Haematology
3. Angiology
4. Cryobiology

✅ Correct Answer: 1

The study of nests of birds is known as:

1. Craniology
2. Nidology
3. Ichnology
4. Myremecology

✅ Correct Answer: 2

Science for the genetical improvement of human race is called:

1. Euthenics
2. Eugenics
3. Genetics
4. Genecology

✅ Correct Answer: 2

The study of the liver is termed as:

1. Herpetology
2. Horology
3. Hepatology
4. Haematology

✅ Correct Answer: 3

Name the science for the study of human beings:

1. Anthropopsy
2. Anthropology
3. Aphidology
4. Anthropopathy

✅ Correct Answer: 2

The branch of zoology under which fossils are studied is called:

1. Palaeozoology
2. Ecology
3. Zoogeography
4. Taxonomy

✅ Correct Answer: 1

Study of plasmodium and Amoeba is termed:

1. Parasitology
2. Solanaceae
3. Protozoology
4. Parazoology

✅ Correct Answer: 3

The study of cause of disease is known as:

1. Pathology
2. Etiology
3. Ethology
4. Zymology

✅ Correct Answer: 2

Ethnology is the study of:

1. Mankind behaviour
2. Past life of organisms
3. Conditions of animals
4. Joints

✅ Correct Answer: 1

Myology is the study of:

1. Muscles
2. Bones
3. Cartilage
4. Epithelium

✅ Correct Answer: 1

The study of immunological reaction occurring in the blood is known as:

1. Haematology
2. Biochemistry
3. Serology
4. Pathology

✅ Correct Answer: 1

The science of characters and distribution of race is known as:

1. Ethnology
2. Anthropology
3. Sociology
4. Taxonomy

✅ Correct Answer: 1

The study of birds is known as:

1. Ornithology
2. Saurology
3. Aves
4. Malacology

✅ Correct Answer: 1

The most recent branch of taxonomy is known as:

1. Cytotaxonomy
2. Karyotaxonomy
3. Morphotaxonomy
4. Taxidermy

✅ Correct Answer: 2

Universe or cosmos began as a dense red hot gaseous cloud about:

1. 1-2 billion years ago
2. 7-10 billion years ago
3. 7-19 million years ago
4. 1-2 million years ago

✅ Correct Answer: 2

Ylem is term also use for:

1. Cosmos
2. Ocean
3. Sun
4. Stars

✅ Correct Answer: 1

Solar System originated about 4.5-5 billion years ago according to the theory proposed by:

1. Darwin
2. Larmarck
3. Kant-Laplace
4. None of these

✅ Correct Answer: 3

Our earth came into existence about:

1. 4.6 billion years ago
2. 3 billion years ago
3. 5 million years ago
4. 2 billion years ago

✅ Correct Answer: 1

Life originated with the creation of universe and it reached the earth from Sun part of universe is the central idea of:

1. Theory of spontaneous/sudden creation
2. Cosmosic Theory
3. Theory of special creation
4. Theory of Chemical evolution

✅ Correct Answer: 2

Origin of life is now due to:

1. Spontaneous generation
2. Will of God
3. Effect of Sunshine on mud
4. None of these

✅ Correct Answer: 1

Which of the following is likely to have been absent in free form at the time of origin of life:

1. Oxygen
2. Methane
3. Nitrogen
4. Ammonia

✅ Correct Answer: 4

Originally the primitive atmosphere was reducing because:

1. Oxygen was most abundant
2. Hydrogen was absent
3. Hydrogen atoms were most abundant and active
4. Carbon Atom were most active

✅ Correct Answer: 3

Believers of theory of spontaneous generation assumed that: Organisms arose not only from other

1. similar organisms but also spontaneously
2. Organisms always arose spontaneously
3. Organisms arose only from air
4. Organisms arose only from other similar organism

✅ Correct Answer: 1

Life originated during:

1. Pre-cambrian period
2. Mesozoic era
3. Coenozoic era
4. Proterozoic era

✅ Correct Answer: 1

Which of the following theories of origin of life was contradicted by experiment of Louis-Pasteur:

1. Theory of special creation
2. Cosmozoic theory
3. Biogenesis
4. Abiogenesis

✅ Correct Answer: 3

Experiments of Spallazani and Pasteur lead to the conclusion that:

1. Air is essential for biogenesis
2. Air is not essential for biogenesis
3. The air went out of the jars and carried micro-organisms with it
4. It was merely a chance

✅ Correct Answer: 1

Louis-Pasteur succeeded in disproving the spontaneous generation theory because:

1. He was lucky enough
2. He was ingenious in crawing out necks of glass flasks so as to provide access to air but not to micro-organisms
3. Air must have gone out through holes of corks and must have carried the micro-organisms along with it
4. Of the fact that the yeast sample taken by him was dead

✅ Correct Answer: 2

Instruments in the hospital are boiled prior to surgery in order to make them:

1. Clean for use
2. Sterilized
3. Immunized
4. Pasteurised

✅ Correct Answer: 2

Moon is:

1. A planet
2. Satellite of Earth
3. Both of these
4. None of these

✅ Correct Answer: 2

There is no life on Moon because there is deficiency of:

1. Carbon
2. Hydrogen
3. Nitrogen
4. Water

✅ Correct Answer: 4

Why is it must to boil the instruments in hospitals before surgery:

1. To kill all pathogene present at the site of operation in the patient s body
2. To kill all the pathogene which may be infecting the insturment
3. To facilitate the handling of instruments
4. To enable the patient to feel warm during operation

✅ Correct Answer: 2

The organism having characteristics of both living and non-living are:

1. Bacteria
2. Monera
3. Viruses
4. None of these

✅ Correct Answer: 3

True nucleus is not present in:

1. Fungi
2. Green Algae
3. Viruses
4. Lichens

✅ Correct Answer: 4

Which of the following statement is true for viruses:

1. They always have RNA
2. They always have DNA
3. They are only bacteriophage
4. They multiply in host cells

✅ Correct Answer: 4

Prokaryotic Genetic System contains:

1. DNA and histones
2. DNA or histones
3. Only DNA and no histones
4. Neither DNA nor histones

✅ Correct Answer: 3

Viruses are:

1. Unicellular
2. Bicellular
3. Multicellular
4. None of these

✅ Correct Answer: 4

A Virion is:

1. Outer covering of the virus
2. Inactive particle - like form of virus
3. DNA complex of the virus
4. None of these

✅ Correct Answer: 2

Virion of a virus consists of:

1. Caspid and DNA
2. Caspid and both nucleic acids
3. Caspid and RNA
4. None of these

✅ Correct Answer: 2

Which of the following planets has conditions essential for life:

1. Japiter
2. Mars
3. Venus
4. Mercury

✅ Correct Answer: 2

Genetic system in prokaryotes and eukaryotes:

1. Are similar and enclosed in the nuclei
2. Dissimilar but enclosed in nuclei
3. Differ in the fact that prokaryotes system lack histones
4. Differ in several respects

✅ Correct Answer: 3

A Cell devoid of nuclear membrane and mitochondria will belong to:

1. Bacteria
2. Protozoans
3. Sponges
4. None of these

✅ Correct Answer: 1

Chemosynthetic bacteria are able to:

1. Synthesize all their food
2. Utilize radiant energy for preparation of food
3. Perform both these functions
4. Perform none of these functions

✅ Correct Answer: 2

Miller synthesized:

1. Aminoacid
2. Proteins
3. Carbohydrates
4. Vitamins

✅ Correct Answer: 2

Carbondioxide of the present atmosphere is entirely produced by:

1. Forest fire
2. Respiration of animals and plants
3. Industrial smoke
4. Microbial activity

✅ Correct Answer: 2

Miller synthesized simple amino acids from:

1. Hydrogen Ammonia Methane and Water Vapours
2. Ammonia Methane Cyanide and Oxygen
3. Methane Cyanide Hydrogen and Oxygen
4. Hydrogen Oxygen Nitrogen and water

✅ Correct Answer: 1

Nucleoproteins most probably gave the first sign of:

1. Life
2. Evolution
3. Matation
4. Speciation

✅ Correct Answer: 4

Oxygen present in the atmosphere has been formed by:

1. Evaporation of sea water
2. Photosynthesis by plants
3. Putrefaction of animals and plants
4. Metabolism of micro-organisms

✅ Correct Answer: 2

It can be concluded on the basis of Miller s experiment that:

1. Organic compounds contain hydrogen oxygen and carbon
2. Complex organic compound were first formed on the primitive earth
3. Life originated in form of amino acid
4. The organic compound can be synthesized in the laboratory

✅ Correct Answer: 3

Most important condition for the origin of life is presence of:

1. Oxygen
2. Nittogen
3. Water
4. Carbon

✅ Correct Answer: 2

Life originated about:

1. One billion years ago
2. Three billion years ago
3. Six billion years ago
4. Nine billion years ago

✅ Correct Answer: 2

Louis Pasteur is known for:

1. Germ Theory of disease
2. Germ Plasm Theory
3. Recapitulation Theory
4. Cell Theory

✅ Correct Answer: 1

Life originated:

1. In air
2. On land
3. In water
4. In all of these

✅ Correct Answer: 3

Which of the following must have evolved in the direction of Origin of Life:

1. Proteins and amino acids
2. Proteins and nucleic acids
3. Urea and proteins
4. None of these

✅ Correct Answer: 1

Stanley Miller in his classical experiment on formation of amino acids passed an electric discharge in the mixture of:

1. Steam Methane Hydrogen and Ammonia
2. Methane Carbondioxide Oxygen and Hydrogen
3. Ammonia Oxygen Hydrogen and Water
4. Methane Hydrogen Nitrogen and steam

✅ Correct Answer: 1

Karyon is the basis of differentiation in between:

1. Enaima and Anaima
2. Prokaryotes and Eukaryotes
3. Protista and Monera
4. None of these

✅ Correct Answer: 2

In his experiment Stanley Miller was successful to demonstrate the formation of amino acids by passing an electric discharge in a mixture of ammonia water hydrogen and:

1. Ethane
2. Methane
3. Carbon-dioxide
4. Ethanol

✅ Correct Answer: 2

True Nucleus is absent in bacteria because:

1. The nuclear membrane is absent
2. The histones do not form complex with DNA
3. Bacteria lack nuclear membrane and histones
4. None of these

✅ Correct Answer: 1

According to most accepted theories the atmosphere of earth before origin of life consisted of a mixture of:

1. Water vapours Hydrogen Ammonia and Methaine
2. Hydrogen Carbon Dioxide Ammonia and Methane
3. Oxygen Ammonia Methane and Water
4. Ozone Methane Oxygen and Water

✅ Correct Answer: 4

To prove that organic molecules formed in the primitive ocean were respobsible for origin of life on earth Millar carried out their synthesis from:

1. CH4 NH3 H2
2. CH4 N2 H2
3. NH3 H2 Water vapours
4. NH3 H2 CH4 water vapour

✅ Correct Answer: 4

The hard Liithosphere was studded with volcanic eruptions pouring out hot lava. The Nitrogen and Carbon Atoms of atmosphere formed nitrides and Carbides respectively by reacting with metallic atoms of lava. The hot water vapours of atmosphere and carbides reacted to form Methane and water vapours and metallic nitrides reacted to form Ammonia. This statement regarding origin and evolution of organic compounds is:

1. Correct
2. Partially wrong
3. Wrong
4. None of these

✅ Correct Answer: 1

Amino acids Sugards Glycerol Fatty acids Nitrogen bases etc. formed in the primitive ocean survived because they were neither oxidized nor putrified. The reason were:

1. Absence of oxygen in primitive ocean
2. Absence of Bacteria in the environment
3. Both (a) and (b)
4. None of these

✅ Correct Answer: 3

During the course of time of origin of life the nucleic acids were formed in the primitive ocean. Certain proteins like histones associated with these nucleic acids to form nucleoproteins which appeared as Self-duplicating System by virtue of this property the nucleic acid became capable of performing hereditary function. The statement according to your opinion is:

1. TRUE
2. Wrong
3. Partially wrong
4. None of these

✅ Correct Answer: 1

The coaservates which acquired nucleoproteins became first cellular organisms and their parts later became modified during the course of time due to chemical changes in the nucleic acid is the view of the scientist:

1. Oparin
2. Lamarck
3. Darwin
4. Aristotle

✅ Correct Answer: 1

According to Horowitz (1945) and Leslie Orgel (1975) the life originated in the sea as free naked gene which linked into chains and later proteins gathered around them to form viruses. The viruses by gathering other molecules and forming a thin binding membrane organized into prokaryotes. Whether this statements is:

1. Correct
2. Incorrect
3. Partially incorrect
4. Absurd

✅ Correct Answer: 4