Candidates appearing in IAS prelims 2012 are expected to be well aware of the recent scientific developments. It won’t only be useful but it will also decide your overall performance in the exam. Science and Technology over the past few years has emerged as one of the major section of the exam.
Candidates are suggested to go though the following questions related to science and technology, in order to examine their preparation of the subject.
1. A team of Scientists led by Takehiko at Yokohama City University grew sperms in a test-tube. Consider the following statements regarding the scientific breakthrough.
i) Sperms were grown in a Test-tube for the first time.
ii) The Scientific breakthrough could help millions of infertile men to attain parenthood.
Now choose the right option:
a) Both i and ii statements are correct
b) Only i is correct
c) Only ii is correct
d) Both I and ii statements are wrong
Answer: (a) Both i and ii statements are correct
2. Scientists, at the Wellcome Trust Sanger Institute UK, for the first time identified genetic mutations that lead to the development of acute myeloid leukaemia. Acute myeloid leukaemia is a cancer of the__.
a) White Blood Cells (WBC)
b) Red blood Cells (RBC)
c) Liver Cells
d) Stem Cells
Answer: (a) White Blood Cells (WBC)
3. Scientists recently developed a computer that could be controlled by the power of thought. It would help people unable to speak or move. What is the name of the technology which they used to develop this kind of computer?
a) electrocortiography
b) symbian C++
c) java
d) flash lite
Answer: (a) electrocartiography
4. British Scientists at Edinburgh University, in the second week of April 2011, created human kidneys from stem cells in a break through which could lead to transplant patients growing their organs. Consider the following statements regarding Kidneys in human body.
i) A person’s kidneys process about 200 quarts of blood to sift out about 2 quarts of waste products and extra water.
ii)The word ‘’renal’ refers to the Lungs in Human Body.
Choose the right option:
a) Both i and ii statements are correct.
b) Only i is correct.
c) Only ii is correct.
d) Neither i nor ii is correct.
Answer: (b) Only i is correct. The word renal refers to the Lungs in Human body.
5. GSAT-8 was launched on 21 May 2011 by Ariane-5 from Kourou, French Guiana. Consider the following statements on GSAT-8.
i) Its weight is 3100 kg.
ii) It is the largest and heaviest satellite built by the ISRO (Indian Space Research Organisation).
Choose the right option.
a) Both i and ii are correct.
b) Only i is correct.
c) Only ii is correct.
d) Neither i nor ii is correct.
Answer: (a) Both i and ii are correct
6. India registered a __ per cent increase in tiger population in 2010, according to a report, Status of tigers, co-predators and prey in India-2010, released on 28 July 2011.
a) 20
b) 30
c) 15
d) 12
Answer: (a) 20
7. The world’s first double-leg transplant was performed by doctors in which one of the following countries?
a) Spain
b) UK
c) USA
d) India
Answer: (a) Spain
8. The WHO (World Health Organisation)’s International Agency for Research on Cancer (IARC) stated in its study that radiation from cellphone handsets is possibly carcinogenic to humans and can cause glioma. Glioma is a type of brain cancer.
a) Brain Cancer
b) Blood Cancer
c) Lung Cancer
d) Liver Cancer
Answer: (a) Brain Cancer
9. China Successfully launched its first unmanned space laboratory. What is the name of this space laboratory?
a) Tiangong-1
b) MEASAT-1
c) ZY-2
d) CH 726
Answer: (a) Tiangong-1
10. What is the name of the gene that can reduce the length of time people sleep?
a) ABCC9
b) ACCB9
c) ABCC 6
d) ABBB9
Answer: (a) ABCC9
11. In Japan, rice with radiation levels exceeding the country’s safety levels was discovered for the first time since the nuclear disaster at Fukushima in early 2011. The acronym LASER stands for____.
a) Light Amplification by Stimulated Emission of Radiation
b) Light Amplification by Stimulated Emission of Rays
c) Light Amplified by Stimulated Emission of Radiation
d) Light and Sound emitted by Radiation
Answer: (a) Light Amplification by Stimulated Emission of Radiation
12. Union Environment Ministry approved the Lavasa township project in Pune. Consider the following statements:
i) Lavasa is a private, planned city being built near Pune.
ii) The project is being developed by HCC ( Hindustan Construction Company).
Choose the right option:
a) Both i and ii are correct.
b) Only i is correct.
c) Only ii is correct.
d) Neither i nor ii is correct.
Answer: (a) Both i and ii are correct
13. Arctic ozone hole was detected at record level. The journal nature reported. The ozone layer blocks _____from the Sun.
a) Infra-Red rays
b) Ultraviolet-B rays
c) Ultraviolet-C rays
d) X-rays
Answer: (b) Ultraviolet-B rays
14. India scientists succeeded in decoding the genome of the arhar dal, which is also known as _____.
a) Pigeon Pea
b) Black-eyed Pea
c) Sweet Pea
d) Split Pea
Answer: (a) Pigeon Pea
15. NASA's Kepler mission discovered the first Earth-size planets orbiting a sun-like star outside our solar system. These planets are called ___ and____.
a) Kepler-20e; Kepler-20f
b) Kepler-20a; Kepler-20b
c) Kepler-20c; Kepler-20d
d) Kepler-20m; Kepler-20n
Answer: (a) Kepler-20e; Kepler-20f
16. Name the gene found by the neuroscientists, which could help in creating and altering memory.
a) Mpas4
b) Npas4
c) Npas3
d) Mpas2
Answer: (b) Npas4
17. As per the report compiled by British-based firm Maplecroft, which one of the following countries is top greenhouse gas emitter?
a) India
b) USA
c) China
d) Japan
Answer: (c) China
18. Scientists produced artificial human semen to help infertile men. Consider the following statements: i) The scientists grew the sperm by enveloping the germ cells in a special compound called agar jelly. ii) The artificial human semen could help infertile men father their own children.
Choose the right option:
a) Both i and ii are correct.
b) Only i is correct.
c) Only ii is correct.
d) Neither i nor ii is correct.
Answer: (a) Both i and ii are correct
19. India registered a __ per cent increase in tiger population in 2010, according to a report, Status of tigers, co-predators and prey in India-2010, released on 28 July 2011.
a) 20
b) 30
c) 15
d) 12
Answer: (a) 20
20. A Japanese supercomputer, K Computer built by Fujitsu Co. grabbed the title of world's best-performing machine thereby returning Japan to the top of the computer arms race for the first time in seven years. Which is the other name by which K Computer is known?
a. Earth Simulator
b. Riken
c. Jaguar
d. Tianhe-1A
Answer: (b)
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