The earliest animal to have been domesticated by man most likely the
horse
cow
dog
pig
Which of the following has been recently used for increasing productivity of super milk cows?
Artificial insemination by a pedigreed bull only
Superovulation of a high production cow only
Embryo transplantation only
A combination of Superovulation, artificial insemination and embryo transplantation into a ‘carrier cow’ (surrogate mother)
In the silk worm, if no juvenile hormone (JH) is present when it moults, it will
die
moult into another larval stage
moult into pupa
moult into an adult
Child death may occur in the marriage of
Rh+ man and Rh+ woman
Rh+ man and Rh- woman
Rh- man and Rh+ woman
Rh- man and Rh- woman
Chemically an antibody is a
lipid
nucleoprotein
protein
lipoprotein
Which of the following symptoms indicate radiations sickness?
Red and ulcerated skin
Nausea and loss of hair
Nausea and anemia
Ulcerated skin, nausea, loss of hair and anemia
Diphtheria is caused by
poisons related from dead bacterial cells into the host tissue
poisons released by living bacterial cells into the host tissues
excessive immune response by the host’s body
poisons released by virus into the host tissues
Which one of the following diseases is now considered nearly eradicated from India?
Plague
Kala azar
Small pox
Poliomyelitis
If a certain person shows production of interferon’s in his body, the chances are that he has got an infection of
typhoid
measles
malaria
tetanus
Human immune deficiency virus (HIV) has a protein coat and a genetic material which is
single stranded DNA
double stranded DNA
single stranded RNA
double stranded RNA
Botulism caused by Clostridium botulinum affects the
Intestine
Neuromuscular junction
Spleen
Lymph glands
Typhoid fever is caused by
Salmonella
Shigella
Escherichia
Giardia
Vaccines are
treated bacteria or viruses or one of their proteins
MHC (major histocompatibility complex) proteins
curative medicines
monoclonal antibodies
The cell in the human body invaded by the human immune- deficiency virus (HIV) is
T- helper cell
Erythorcyte
B- cell
Macrophage
Blood group AB has
No antigen
No antibody
Neither antigen nor antibody
Both antigen and antibody
It is not possible to apply Koch’s postulates to
Diphtheria
Cholera
Leprosy
Tuberculosis
Cells involved in immune mechanism are
Erythrocytes
Lymphocytes
Eosinophils
Thrombocytes
Which of the following pair is not correctly matched?
dengue fever – arbovirus
plague – yersinia pestis
syphilis – Trichuris trichiura
malaria – Plasmodium vivax
Which of the following diseases is due to to an allergic reaction?
goiter
skin cancer
hay fever
enteric fever
Hypersensitivity to an allergen is associated with
aberrant functioning of the immune mechanism
increase in ambient temperature
age of the individual
food habits
In which of the following pairs of diseases both are caused by viruses?
Tetanus and typhoid
Whooping cough and sleeping sickness
Syphilis and AIDS
Measles and rabies
Retroviruses are implicated as a cause for cancer in humans because they
carry gene for reverse transcriptase
may carry cellular proto-oncogenes in their genome
may carry v-oncogenes in their genome
carry single stranded RNA as their genetic material
Passive immunity was discovered by
Edward Jenner
Emil von Behring
Robert Koch
Louis Pasteur
During blood typing agglutination indicates that the
RBC carry certain antigens
Plasma contains certain antigens
RBC carry certain antibodies
plasma contains certain antibodies
The antibodies are
carbohydrates
lipids
proteins
germs
Correctly match sexually transmitted disease with its pathogen
Syphilis – Treponema pallidum
AIDS - Bacillus anthracis
Urethritis – Entamoeba gingivalis
Gonorrhoea - Leishmania donovani
Bovine spongiform encephalopathy, a bovine disease is related to which human disease?
Cerebral spondylitis
Creutzfeldt- Jacob disease
Encephalitis
Kala – azar
Small proteins produced by vertebrate cells in response to viral infections inhibiting viral multiplication are known as
Lipoproteins
Immnglobulins
Interferons
Antitoxins
HIV has a protein coat and genetic material which is
Single Stranded DNA
Single Stranded RNA
Double stranded RNA
Double Stranded DNA
For which of the following disease, there is preventive vaccine?
AIDS
Hepatitis B
Syphilis
Gonorrhea
Which one of the following is correct match?
Reserpine - Tranquilizer
Cocaine - Opiate narcotic
Morphine - Hallucinogenic
Bhang - Analgesic
Salmonella is related with
Typhoid
Polio
T.B.
Tetanus
Which of the following is most infectious diseases?
Hepatitis – B
AIDS
Amoebiosis
Malaria
Reason of lung cancer
Asbestos
Calcium fluoride
Cement factory
Bauxite mining
E. coli about to replicates was placed in a medium containing radioactive thymidine for five minutes. Then it was made to replicate in a normal medium. Which of the following observation shall be correct?
Both strands of DNA will be radioactive
One strand will be radioactive
Each strand half radioactive
None is radioactive
Cancerous cells can easily be destroyed by radiations due to
rapid cell division
lack of nutrition
fast mutation
lack of oxygen
Short- lived immunity acquired from mother to foetus across placenta or through mother’s milk to the infant is categorized as
innate non- specific immunity
active immunity
passive immunity
cellular immunity
Carcinoma refers to
benign tumours of the connective tissue
malignant tumours of the connective tissue
malignant tumours of the skin or mucous membrane
malignant tumours of the colon
What are true T- lymphocytes in mammals?
These are produced in thyroid
There are three main types – cytotoxic T-cells, helper T-cells and suppressor T- cells
These originate in lymphoid tissues
They scavenge damaged cells and cellular debris
Which one of the following conditions though harmful in itself, is also a potential savior from a mosquito borne infectious disease?
Leukemia
Thalassaemia
Sickle cell anemia
Pernicious anemia
Which one of the following is not correctly matched
Glossina palpalis - Sleeping sickness
Culex pipiens - Filariasis
Aedes aegypti - Yellow fever
Anopheles culifacies - Leishmaniasis
ELISA is used to detect viruses, where
DNA – sleeping sickness
Southern bloting is done
Alkaline phosphatase is the key reagent
Catalase is the key reagent
AIDS is caused by HIV that principally infects:
all lymphocytes
activator B cells
cytotoxic T cells
T4 lymphocytes
Which one of the following depresses brain activity and produced feelings of calmness, relaxation and drowsiness?
Morphine
Valium
Amphetamines
Hashish
Cri – du chat syndrome in humans is caused by
loss of half of the short arm of chromosome 5
loss of half of the long arm of chromosome 5
trisomy of 21st chromosome
fertilization of an XX egg by a normal Y- bearing sperm
HIV that causes AIDS, first starts destroying
Leucocytes
Thrombocytes
Helper T- lymphocytes
B – lymphocytes
Both sickle cell anemia and Huntington’s chorea are
congenital disorders
pollulant - induced disorders
virus – related diseases
bacteria - related diseases
Sickle cell anaemia has not been eliminated from the African population because
it is not a fatal disease
it provides immunity against malaria
it is controlled by dominant genes
it is controlled by recessive genes
A person showing unpredictable moods, outbursts of emotion, quarrelsome behavior and conflicts with other is suffering from_________
Borderline personality disorder (BPD)
Mood disorders
Addictive disorders
Schizophrenia
The ‘blue body’ syndrome results from
methemoglobin
excess of dissolved oxygen
excess of TDS (total dissolved solids)
excess of chloride