General Science Questions and answers

Topics

  1. General Science
    1. Assertions and Reasons
    2. Biology
    3. Chemistry
    4. Physics
    5. Inventions
91). Regarding Metabolic engineering, which one is not true
A). the practice of optimising genetic and regulatory processes within cells to increase the cells production of a certain substance
B). Current examples include producing beer, wine, cheese, pharmaceuticals and other biotechnology products
C). These processes are chemical networks that use a series of biochemical reactions and enzymes that allow cells to convert raw materials into molecules necessary for the cell's survival
D). None of the above are false
92). Consider about the Genetic Engineering
1. It is the indirect manipulation of an organism's genome using biotechnology.
2. An organism that is generated through genetic engineering is considered to be a genetically modified organism (GMO).
3. New DNA may be inserted in the host genome by first isolating and copying the genetic material of interest using molecular cloning methods to generate a DNA sequence, or by synthesising the DNA, and then inserting this construct into the host organism.
4. Genetic engineering techniques have been applied in numerous fields including research, agriculture, industrial biotechnology, and medicine.
Which of the following statements given above is/are correct?
A). 1, 2 and 3
B). 2, 3 and 4
C). 1, 3 and 4
D). 3 and 4
93). Which is/are True regarding Biotechnology?
1. It is the application of scientific and engineering principles to the processing of materials by biological agents to provide goods and services.
2. Yet the formation of a new field. genetic engineering, would soon bring biotechnology to the forefront of science in society, and the intimate relationship between the scientific community, the public, and the government would ensue.
3. Biotechnology arose from the field of zymotechnology, which began as a search for a better understanding of industrial fermentation, particularly beer.
4. Genetic engineering in biotechnology stimulated hopes for both therapeutic proteins, drugs and biological organisms themselves, such as seeds, pesticides, engineered yeasts, and modified human cells for treating genetic diseases.
5. Biotechnology comes under the broad heading of Genetic Engineering.
Select the correct answer using the codes given below
A). 2, 3 and 4
B). 1, 3, 4 and 5
C). 1, 2, 3 and 4
D). 2 and 4
94). Consider about the Cryonics
1. It is the low-temperature preservation of humans and animals who cannot be sustained by contemporary medicine, with the hope that healing and resuscitation may be possible in the future.
2. Cryopreservation of people or large animals is not reversible with current technology.
3. Cryonics procedures ideally begin within minutes of cardiac arrest, and use cryoprotectants to prevent ice formation during cryopreservation.
Select the correct statement
A). 1 and 2
B). 2 and 3
C). 1 and 3
D). All of these
95). A Cryoprotectant is a substance that is used to protect biological tissue from freezing damage (i.e., that due to ice formation). Which of the following can be used by different species as Cryoprotectant?
1. Sugars
2. Fats
3. Glycerols
Select the correct answer using the codes given below
A). 1 and 2
B). 2 and 3
C). 1 and 3
D). Only 3


96). Which one is not False regarding Bionic architecture?
A). It is a movement for the design and construction of expressive buildings whose layout and lines borrow from natural (i.e. biological) forms
B). It sets itself in opposition to traditional rectangular layouts and design schemes by using curved forms and surfaces reminiscent of structures in biology and fractal mathematics
C). One of the tasks set themselves by the movement's early pioneers was the development of aesthetic and economic justifications for their approach to architecture
D). All of the given statements
97). Which is true regarding Bio physical Economics?
1. It accounts the overall gathering of the life forms in a particular areas whether it is detrimental to environment or not
2. It is a school of heterodox economics that applies the laws of thermodynamics to economic theory
Select the correct answer using the codes given below
A). Only 1
B). Only 2
C). 1 and 2
D). None of these
98). Consider about the Bioengineering
1. It is the application of concepts and methods of biology (and secondarily of physics, chemistry, mathematics, and computer science) to solve real-world problems related to the life sciences and/or the application thereof, using engineering's own analytical , and synthetic methodologies.
2. Biological engineering is a science based discipline founded upon the biological sciences in the same way that chemical engineering, electrical engineering, and mechanical engineering can be based upon chemistry, electricity and magnetism, and classical mechanics, respectively.
3. The word bioengineering was coined by US scientist and broadcaster Heinz Wolff in 1954.
Which of the following statements given above is/are correct?
A). Only 2
B). 2 and 3
C). 1 and 3
D). 1 and 2
99). Consider the following statement
1. Horizontal gene transfer (HGT) refers to the transfer of genes between organisms in a manner other than traditional reproduction.
2. Horizontal gene transfer is the primary reason for bacterial antibiotic resistance and plays an important role in the evolution of bacteria that can degrade novel compounds such as human-created pesticides.
Select the correct answer using the codes given below
A). Only 1
B). Only 2
C). Both 1 and 2
D). Neither 1 nor 2
100). Consider about the Biomaterial
1. It is may matter, surface, or construct that interacts with biological systems and the study of biomaterials is called biomaterials science.
2. Biomaterials science encompasses elements of medicine, biology, Chemistry, tissue engineering and materials science.
3. As a science, biomaterials must be about five hundred years old.
Which of the statements given above is/are correct?
A). 1 and 2
B). 2 and 3
C). Only 3
D). All of these
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