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401.

At which stage of HIV infection does one usually show symtomas of AIDSA. When the infected retro virus enters host cellsB. Within 15 days of sexual contact with an infected personC. When the viral DNA is produced by reverse transcriptaseD. When HIV damages large number of helper T-lymphocytes

Answer» Correct Answer - D
402.

The sexually transmitted infection, that can affect both the male and female genitals and may damage the eyes of babies born of infected mothers isA. AIDSB. SyphilisC. GonorrhoeaD. Hepatitis

Answer» Correct Answer - C
403.

People, who are at the high risk of getting HIV infectionA. Individuals who require repeated blood transfusionsB. Individuals who have multiple sexual partnersC. Drug addicts who take drugs intravenouslyD. all of the above

Answer» Correct Answer - D
404.

Trypanosoma, the causative agent of african sleeping sickness belong to which class of protozoa?A. RhizopodaB. MastigophoraC. SporozoaD. Ciliata

Answer» Correct Answer - B
405.

The process by which a new structure is formed in the tissue of the host during parasitic infection:A. hyperplasiaB. neoplasinC. hypertrophyD. gigantism

Answer» Correct Answer - B
406.

Interal bleeding, muscular, pain, blockage of intestinal passage and anaemia are symptoms of infection byA. WuchereriaB. TrichophytonC. AscarisD. Plasmodium

Answer» Correct Answer - C
interal bleeding, muscular pain are some of the symptoms toms caused due to infection by ascaris.
407.

Iron deficiency anaemia is a complication of which parasitic infectionA. Round wormB. Thread wormC. Hook wormD. Whip worm

Answer» Correct Answer - C
408.

It is said, that the harmful alleles get eliminated from population over a period of time, yet sickle-cell anaemia is persisting in human population. Why?

Answer» Sickle-cell anaemia still persists in the population despite being harmful because this mutation can also be beneficial in certain conditions.
The mutant `Hb^(5)` type haemoglobin is found at high frequencies (up to 20% and above) in the tropical Africa.
It is known that heterozygotes `(Hb^(s)//Hb^(A))`, having both types of haemoglobin show resistance to malarial infection because the body targets the Plasmodium falciparum infected cell for destruction . In contrast, individuals homozygous for normal haemoglobin `(Hb^(A)//Hb^(A))` suffer high mortality rates in early childhood due to malarial infection.
Thus, the allele for sickle cells has been maintained because heterozygotes have a higher reproductive success than either of the two possible homozygotes.
409.

The pathogen Haemophilus influenzae is responsible for the disease:A. plagueB. influenzaC. pneumoniaD. diphtheria

Answer» Correct Answer - C
410.

The pathogen Haemophilus influenzae is responsible for the disease:A. InfluenzeB. PneumoniaC. PlagueD. Diphtheria

Answer» Correct Answer - B
the pathogen haemphilus influenzae is responsible for the disease pneumonia.
411.

The process of spreading the cancerous cells to distant site is known asA. metastasisB. metachrosisC. metagensisD. metamorphosis

Answer» Correct Answer - A
412.

Who got Nobel prize of Physiology or Medicine of 2008 for the discovery of HIV ?A. Francoise Barre-Sinoussi and Luc MontagnierB. Francoise Peyton Rous and David BaltimoreC. Oliver Smithies and Mario R. CapecchiD. Richard Axel and Linda Buck

Answer» Correct Answer - A
413.

Match the causative organisms with their diseases: `{:("Column-I","Column-II"),(A" Haemophilus influenzae", 1." Malignant malaria"),(B" Entamoeba histolytica", 2." Elephantiasis"),(C" Plasmodium falciparum", 3." Pneumonia"),(D" Wuchereria bancrofti", 4." Typhoid"),(E" Salmonella typhi", 5." Amoebiasis"):}`A. A=3, B=1, C=4, D=5, E=3B. A=3, B=5, C=1, D=2, E=4C. A=5, B=1, C=3, D=2, E=4D. A=3, B=4, C=1, D=5, E=2

Answer» Correct Answer - B
414.

Sickly-cell anaemia is the result of……….mutation in the haemoglobin gene:A. pointB. deletionC. frameshiftD. none of these

Answer» Correct Answer - A
415.

Flemming, Chain and Florey were awarded the Nobel Prize in 1945 for the discovery ofA. HIVB. CT scanC. StaphylococcusD. Antibodies

Answer» Correct Answer - C
416.

Assertion (A): Organ transplantation patients are given immunosuppressive durgs. Reason (R): Transplanted tissue has antigens which stimulate the specific immune response of the recipient.A. If both assertion and reason are true and the reason is a correct explanation of the assertion.B. In both assertion and reason are true but reason is not a correct explanation of the assertion.C. if the assertion is true but reason is false.D. If both the assertion and reason are false

Answer» Correct Answer - A
417.

Assertion : MRI generate three dimensional image of the internals of an object. Reason : Antigens against cancer specific antibodies are also used for detection of certain cancers.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false.

Answer» Correct Answer - D
Computed tomography generate three dimensional image of the internals of an object
Antibodies against cancer specific antigens are also used for detection of certain cancers.
418.

Antibody is connected withA. Immune systemB. digestive systemC. respiratory systemD. skeletal system

Answer» Correct Answer - A
Antibody is connected with immune system
419.

Hypotensive tranquilliser drug reserpine is obtained from roots ofA. Ferula asafoetidaB. Rausolfia serpentinaC. papaver somniferumD. curcuma longa

Answer» Correct Answer - B
Hypotensive transquillizer drug reserpine is obtained from roots of Rauwolfia serpentina `//`r. vomitoria.
420.

Drug addict shows symptoms of depressed brain activity, Feeling of calmness, relaxation, drowsiness. Possibly the addiction is ofA. valiumB. amphetamineC. morphine`//`pethidineD. marijuana`//`hashish

Answer» Correct Answer - A
Drug addict shows symptoms of depressed brain activity feeling of calmness relaxation drowsiness.
Possible the addiction is of valium.
421.

A certain patient is suspected to be suffering from Acquired Immuno Deficiency Syndrome. Which diagnostic technique wll you recommend for its detectionA. MRIB. ELISAC. WIDALD. Ultrasound

Answer» Correct Answer - B
422.

If there are two pathogenic viruses, one with DNA and other with RNA, which would mutate faster? And why?

Answer» RNA mutates faster than DNA.
DNA is more stable and also has better repair mechanisms that correct the changes in base pairs as soon as it is introduced.
423.

Typhus fever is transmitted by:A. bedbugB. mosquitoC. houseflyD. body louse

Answer» Correct Answer - D
424.

In arteriosclerosisA. Arterial walls become very thin and weak so that the blood oozes out of the wallsB. Sex linked heredity is involvedC. Blood coagulates even the arteriesD. Arterial walls become inelastic and thickness

Answer» Correct Answer - D
425.

Cancer in the body can be detected byA. Computed tomorgraphyB. Widal testC. ELISAD. None of these

Answer» Correct Answer - A
426.

World AIDS day isA. 1st mayB. 1st DecC. 20th DecD. 1st June

Answer» Correct Answer - B
427.

Lesihmania donovai is transmitted byA. GlossinaB. Triatoma bugsC. PhlebotomusD. Culex

Answer» Correct Answer - C
leishmania donovani is transmitted by sandfly phlebotamus.
428.

Identify the wrongly matched pair:A. Typhoid -Widal testB. Plague -Viral diseaseC. Malignant malaria -Plasmodium falciparumD. Common cold-Rhinovirus

Answer» Correct Answer - B
plaggue bactereal disease
429.

The inner core of HIV is made of the protein:A. GP 120B. GP 41C. P 24D. All of these

Answer» Correct Answer - C
430.

Select the incorrect combinations from followings.A. Encephalitis - Viral diseaseB. Kala azar - PhlebotomusC. Rhabditiform larvae - AscarisD. Entamoeba - Sporogony

Answer» Correct Answer - D
431.

Identify the wrongly matched pair:A. Typhoid - Widal testB. Plague - Viral diseaseC. Common cold - RhinovirusD. Trychophyton - Ringworm

Answer» Correct Answer - B
432.

Salk vaccine is used to protect from:A. polioB. mumpsC. typhoidD. tuberculosis

Answer» Correct Answer - A
Salk vaccine is the Inactivated Polio Virus (IPV) vaccine recommended for infants and children to confer immunity to polio.
433.

Select the incorrect pair:A. Xenopsylla - PlagueB. Culex - MalariaC. Pediculus - Typhus feverD. Aedes - Yellow fever

Answer» Correct Answer - B
Anopheles-Malaria.
434.

Hydatid cyst is caused by:A. TrichinellaB. Taenia soliumC. EchinococcusD. Taenia saginata

Answer» Correct Answer - C
Hydatid cyst is caused by Echinococcus, commonly known as dog tapeworm.
435.

Substances which are released by pathogenic bacteria and cause harm to the host are:A. exotoxinsB. antigensC. antitoxinsD. antibiotics

Answer» Correct Answer - A
436.

Immuno deficiency syndrome could develop due to:A. AIDS virusB. Defective liverC. Defective thymusD. Weak immune system

Answer» Correct Answer - A
437.

Definite host for guineaworm is:A. ManB. SnailC. CyclopsD. Cyclops and man

Answer» Correct Answer - A
438.

AIDS spreads through:A. infected needles and syringesB. immoral way of lifeC. homosexualityD. all of the above

Answer» Correct Answer - D
439.

Pinworm is zoologically known as:A. Taenia soliumB. Ascaris lumbricoidesC. Wuchereria bancrofitD. Enterobius vermicularis

Answer» Correct Answer - D
440.

Infection of Enterobius to man is by:A. piercingB. inoculationC. contaminationD. none of these

Answer» Correct Answer - C
441.

Diabetes mellitus is due to lack of:A. ADHB. InsulinC. GlucagonD. Vasopressin

Answer» Correct Answer - B
442.

AIDS related complex or ARC is:A. A milder form of AIDSB. Severe form of AIDSC. Not linked to AIDSD. None of these

Answer» Correct Answer - A
443.

AIDS is characterized by a reduction in:A. killer T-cellsB. helper T-cellsC. B-lymphocytesD. suppressor T-cells

Answer» Correct Answer - B
444.

Arthritis is characterized by:A. painB. swellingC. stiffnessD. all of these

Answer» Correct Answer - D
445.

Diabetes is characterized by:A. hypoglycemiaB. hyperglycemiaC. hypercalcemiaD. all of these

Answer» Correct Answer - B
446.

Break bone fever isA. TyphoidB. Viral encephalitisC. Kala azarD. Dengue

Answer» Correct Answer - B
447.

What are the benefits of being healthy ? (a) Healthy person is more efficient at worik (b) Health increases longevity of people (c ) Health reduces infant mortality (d) Health reduces maternal mortalityA. a,b and cB. b,c and dC. a,c and dD. a,b,c and d

Answer» Correct Answer - D
when people are healthy, they are more efficient at work. This increases productivity and bring economic prosperity. Health also increases longevity of people and reduces infant and maternal mortality.
448.

Blood circulation was discovered byA. Willian HarveryB. HippocatesC. Carl LandsteinerD. Landsteiner and Weiner

Answer» Correct Answer - A
blood circulation was discovered by willian harvey.
449.

If you keep the sanitary system around yourself sound then the disease which will not most probably break out is:A. choleraB. malariaC. beri-beriD. scurvy

Answer» Correct Answer - A
450.

Diarrhoea causes:A. whooping coughB. dehydrationC. typhoidD. all of these

Answer» Correct Answer - B