General Science Questions and answers

Topics

  1. General Science
    1. Assertions and Reasons
    2. Biology
    3. Chemistry
    4. Physics
    5. Inventions
81). With reference to the latest development in stem cell research, consider the following statements
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 stem cell lines which can be developed into many types of tissues.
Which of the statements given above are correct?
A). 1, 2, 3 and 4
B). 1, 2 and 3
C). 1, 2 and 4
D). 3 and 4
82). Which reference to 'stem cells', frequently in the news, which of the following statements is/are correct?
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 3
B). 2 and 3
C). Only 3
D). 1, 2 and 3
83). What are the reasons for the people's resistance to the introduction of Bt brinjal in India?
1. Bt brinjal has been created by inserting a gene from a soil fungus into its genome.
2. The seeds of Bt brinjal are terminator seeds and therefore, the farmers have to buy the seeds before every season from the seed companies.
3. There is an apprehension that the consumption of Bt brinjal may have adverse impact on health.
4. There are some concerns that the introduction of Bt brinjal may have adverse effect on the biodiversity.
Select the correct answer using the codes given below
A). 1, 2 and 3
B). 2 and 3
C). Only 4
D). 1, 2, 3 and 4
84). Consider the following statements
1. Embryonic stem cells can now be turned into oxygen-carrying red blood cells.
2. Artificial blood for transfusion still requires refrigeration just like ordinary donor blood.
Which statement is/are correct?
A). Only 1
B). Only 2
C). Both 1 and 2
D). Neither 1 nor 2
85). Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to
1. resist drought and increase absorptive area.
2. tolerate extremes of pH.
3. resist disease infestation.
Select the correct answer using the codes given below
A). Only 1
B). 2 and 3
C). 1 and 3
D). All of these


86). Which of the following is not true about biomimetics?
A). It is the study of the structure and function of biological systems as models for the design and engineering of materials and machines
B). It is widely regarded as being synonymous with biomimicry, biomimesis, biognosis and similar to biologically inspired design
C). The term was coined by the American biophysicist and polymath Otto Schmitt during the 1950s
D). None of the above given sentences
87). What is Paratransgenesis?
1. It is a technique that attempts to eliminate a pathogen from vector populations through transgenesis of a symbiotic of the vector.
2. The goal of this technique is to control vector-borne diseases.
3. Here the field delivery is quite tough.
4. The first step is to identify proteins that prevent the vector species from transmitting the pathogen.
5. The first example of this technique used Rhodnius prolixus which is associated with the symbiont Rhodococcus rhodnii.
Which of the following statements given above is/are correct?
A). 1, 2, 3
B). 2, 3, 4
C). 1, 2, 4, 5
D). 2, 3, 4, 5
88). Which of the following is not correct regarding Bioculture?
A). Bioculture defines the activity and consolidation of ideas created when the human intersects with the technological
B). It comprises the emerging area bounded by the medical sciences, social sciences, area studies, culture studies, biotechnology, disability studies, the humanities, and the economic and global environment
C). It assumes that in bioculture there's a diverse way to know the workings of the body and mind, and that these are primarily culturally derived, and an experts way of knowing produces specific strong results
D). Here the study of body parts and the minds are not included
89). What is Virotherapy?
A). It is a therapy to treat viral infection in human beings
B). It is a treatment using biotechnology to convert viruses into therapeutic agents by reprogramming viruses to treat diseases
C). There are two main branches of virotherapy anti-cancer oncoiytic viruses and viral immunotherapy
D). It is actually used to change harmful viruses into useful one
90). Which country has launched the first Medical Experiment Module called 'Kibo' to be used on the international Space Station?
A). South Korea
B). Japan
C). China
D). Taiwan
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