1. Daltonism is the name referred to which of the following disorders as this name was kept in honour of John Dalton , the father of atomic theory?
[A] Deafness
[B] Color Blindness
[C] Night Blindness
[D] Astigmatism
Show Answer
Correct Answer: B [Color Blindness]
Notes:
Daltonism refers to the Colorblindness of the red-green type which is also known as deuteranopia or deuteranomaly.The term “Daltonism” is derived from the name of the chemist and physicist, John Dalton (1766-1844).
2. Which among following is not a Fish?
[A] Cuttle Fish
[B] Gold Fish
[C] Dog Fish
[D] Zebra Fish
Show Answer
Correct Answer: A [Cuttle Fish]
Notes:
Cuttlefish or cuttles are marine molluscs of the order Sepiida. related to the octopus and squid and characterized by a thick internal calcified shell called the cuttlebone.
3. In which of the following diseases copper accumulates in tissues ?
[A] Fabry disease
[B] Canavan disease
[C] Wilson’s disease
[D] Gunther disease
Show Answer
Correct Answer: C [Wilson’s disease]
Notes:
Wilson’s disease is a genetic disorder in which excess copper builds up in the body. Symptoms are typically related to the brain and liver. Some of the symptoms are vomiting, weakness, fluid build up in the abdomen, swelling of the legs, etc.
4. Non-vascular embryophytes are __:
[A] Pteridophytes
[B] Algae
[C] Bryophytes
[D] Gymnosperms
Show Answer
Correct Answer: C [Bryophytes]
Notes:
Bryophytes are an informal group consisting of three divisions of non-vascular land plants: the liverworts, hornworts and mosses. They play a vital role in regulating ecosystems because they provide an important buffer system for other plants.
5. The correct group of animals that suffer from the “Foot & Mouth ” disease is as follows:
[A] Only Cattle
[B] Cattle & Sheeps
[C] Cattle and Pigs
[D] Cattle, Sheeps and Pigs
Show Answer
Correct Answer: D [Cattle, Sheeps and Pigs]
Notes:
Foot and mouth disease (FMD) or hoof and mouth disease (HMD) is an infectious and sometimes fatal viral disease that affects cloven-hoofed animals. Cattle, Sheeps and Pigs are affected by the Foot & Mouth disease.
6. Which one of the following creatures has maximum number of ribs?
[A] Ray fish
[B] Flying mammal
[C] Snake
[D] Crocodile
Show Answer
Correct Answer: C [ Snake ]
Notes:
Snakes have the maximum number of ribs. On an average they have 200 to 400 bones (Vertibrae ) and each have a pair of ribs on either side.
7. Where in the human body is the stapedius muscle situated?
[A] Nose
[B] Ears
[C] Leg
[D] Eyes
Show Answer
Correct Answer: B [Ears]
Notes:
The stapedius muscle is the smallest skeletal muscle in the entire body that is located in the middle ear. Specifically, the stapedius muscle originates from a cone-shaped structure in the tympanic cavity of each ear and then extends to the stapes bone.
8. Triple Antigen IPV immunizes against three diseases. Which of the following is not immunized by ‘Triple Antigen’? (UPSC Prelims 1979).
[A] Typhoid
[B] Whooping cough
[C] Tetanus
[D] Diphtheria
Show Answer
Correct Answer: A [Typhoid]
Notes:
DPT is a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough), and tetanus. The vaccine components include diphtheria and tetanus and killed whole cells of the bacterium that causes pertussis. Diptheria is a highly contagious bacterial infection typically affecting the throat and tonsils with the formation of a thick grey membrane over those areas. Tetanus is bacteria which lives in soil and contaminates wounds, where it produces a powerful toxin, the toxin attacks the nervous system causing increasing muscle spasm and rigidity. Whooping Cough is one of the most contagious bacterial infections known. Beginning with a runny nose and sore throat, it progresses to a severe spasmodic cough which persists for around 3 months.
9. Which of the following belongs to the Hypochondria? (UPSC Prelims 1983)
[A] Disease of eyes
[B] Disease of sexual organs
[C] Disease of low blood pressure
[D] State of morbid anxiety about one’s own health, with complaint of imaginary disorders
Show Answer
Correct Answer: D [State of morbid anxiety about one’s own health, with complaint of imaginary disorders]
Notes:
Hypochondria symptoms include a long-term and intense fear of having a serious condition and worry that minor symptoms indicate something serious. A person may frequently visit or switch doctors.
10. Consider the following statements regarding bones in the human body:
- They consist of 80% solid matter and20% water.
- Solid matter in the bones is made mainly of cartilage.
- Impregnation of salts including carbonates and phosphates of lime imparts hardness to the bones.
- In old age, the proportion of lime decreases and bones become brittle and break easily.
Of these statements: (UPSC Prelims 1990)
[A] 1,2 and 3 are correct
[B] 2 and 4 are correct
[C] 2 and 3 are correct
[D] 1, 2, 3 and 4 are correct
Show Answer
Correct Answer: D [1, 2, 3 and 4 are correct]
Notes:
All of them are correct.
Bones consist of living cells embedded in a mineralized organic matrix. This matrix consists of organic components, mainly type I collagen – “organic” referring to materials produced as a result of the human body – and inorganic components, primarily hydroxyapatite and other salts of calcium and phosphate.
