Daily GS Foundation MCQs - SthaapnaIAS Previous Year QuestionsScience and technology Previous Year QuestionSthaapana - May 2019Sthaapana - May 2019 - Week 2

IAS Previous Year Science & Tech Questions | Lecture 10 | Biotechnology Part-2

 

Q.1) With reference to the latest developments in stem cell research, consider the following statements [2002]

  1. The only source of human stem cells are the embryos at blastocyst stage.
  2. The stem cells can be derived without causing destruction to blastocysts.
  3. The stem cells can regenerate themselves in vitro virtually forever.
  4. Indian research centres also created a few cell lines which can be developed into many types of tissues.

Which of these statements are correct?

(a) 1, 2 and 4

(b) 1, 2 and 3

(c) 1, 2 and 4

(d) 3 and 4

Q.2) With reference to ‘stem cells’, frequently in the news, which of the following statements is/are correct? [2012 – I]

  1. Stem cells can be derived from mammals only.
  2. Stem cells can be used for screening new drugs.
  3. Stem cells can be used for medical therapies.

Select the correct answer using the codes given below :

(a) 1 and 2 only

(b) 2 and 3 only

(c) 3 only

(d) 1, 2 and 3

Q.3) Which of the following types is used by computed tomography employed for visualisation of the internal structure of human body? [2007]

(a) X-ray

(b) South waves

(c) Magnetic resonance

(d) Radio isotopes

Q.4) Endoscopy, a technique used to explore the stomach or other inner parts of the body is based on the phenomenon of [1999]

(a) total internal reflection

(b) interference

(c) diffraction

(d) Polarization

Q.5) Recently, LASIK (Laser Assisted In Situ Keratomileusis) procedure is being made popular for vision correction. Which one of the following statements in this context is not correct? [2010]

(a) LASIK procedure is used to correct refractive errors of the eye

(b) It is a procedure that permanently changes the shapes of the cornea

(c) It reduces a person’s dependence on glasses or contact lenses

(d) It is a procedure that can be done on the person of any age

Q.6) In the context of the developments in Bioinformatics, the term ‘transcriptome’, sometimes seen in the news, refers to [2016]

(a) a range of enzymes used in genome editing

(b) the full range of mRNA molecules expressed by an organism

(c) the description of the mechanism of gene expression

(d) a mechanism of genetic mutations taking place in cells

Q.7) At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us? [2011 – I]

  1. It is possible to know the pedigree of livestock.
  2. It is possible to understand the causes of human diseases.
  3. It is possible to develop disease-resistant animal breeds.

Which of the statements given above is/are correct ?

(a) 1 and 2 only

(b) 2 only

(c) 1 and 3 only

(d) 1, 2 and 3

Q.8) With reference to the treatment of cancerous tumours, a tool called cyberknife has been making the news. In this context, which one of the following statements is not correct ? [2010]

(a) It is a robotic image guided system

(b) It delivers an extremely precise dose of radiation.

(c) It has the capability of achieving sub-millimetre accuracy.

(d) It can map the spread of tumour in the body

Q.9) Hybridoma technology is a new biotechnological approach for commercial production of [2000]

(a) monoclonal antibodies

(b) interferon

(c) antibiotics

(d) Alcohol

Q.10) Match List-I (Scientists) with List-II (Achievements) and select the correct answer using the codes given below: [2002]

Codes:

List-I (Scientists) List-II (Achievements)
A.  Arber and Smith 1. Developed transgenic plants with Agrobacterium
B.  Feldman 2. Discovered endonucleases
C.  Mullis 3. Discovered reverse transcriptase
D.  Temin 4. Discovered polymerase Baltimore chain reaction

(a) A – 2; B – 1; C – 4; D – 3

(b) A – 1; B – 2; C – 4; D – 3

(c) A – 2; B – 1; C – 3; D – 4

(d) A – 1; B – 2; C – 3; D – 4

Do it yourself

Q.11) Match List-I with List-II and select the correct answer using the codes given below: [2001]

List-I   List-II
(Achievement in genetics)  (Scientists)
A. Discovery of transduction 1. Khurana and conjugation in bacteria
B. Establishing the sex-linked 2. Korenberg inheritance
C. Isolation of DNA polymerase

3. Lederberg from E. coli

D. Establishing the complete 4. Morgan genetic code
5. Ochoa

 

Codes:

(a) A – 4; B – 3; C – 2; D – 1

(b) A – 3; B – 4; C – 1; D – 5

(c) A – 4; B – 3; C – 1; D – 5

(d) A – 3; B – 4; C – 2; D – 1

Do it yourself 

Q.12) Which one of the following is the landmark performance of Dr. V. Mohan Reddy, an Indian, born doctor working in U.S.A. during February, 2005? [2005]

(a) Research on human stem cell which is likely to revolutionise treatment of deadly disease like cancer.

(b) Successful open heart procedure called arterial switch performed on an infant.

(c) Research on genetic engineering which can help in treatment of deadly disease like AIDS.

(d) Successful brain surgery to revive the function of nearly dead brain of a premature born infant.

Do it yourself

Read about the following technologies/terms recently seen in news:

1.FLINK

2.Speed breeding techniques: Wheat production

3.Gene Silencing

4.Gene Editing  and CRISPR technology

Do it yourself

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