CBSE Questions for Class 8 General Knowledge India: Science And Technology Quiz 1 - MCQExams.com

Which of the following cyber attacks crippled most of the countries in the world?
  • Ransomware
  • GhostNet
  • StarDust
  • Cleaver
What is "NMD"?
  • New Monroe Doctrine
  • New Monetary Device
  • National Meteorological Department
  • Space-based anti-ballistic missile system being set up by the US
One of the Himalayan peaks that lies between Tibet and Nepal is _____________.
  • Mount Godwin Austin
  • Mount Everest
  • Kanchenjunga
  • Nanga Parbat
Where are MIG engines assembled?
  • Ozar
  • Bangalore
  • Nasik
  • Koraput
Organization which are formed to promote their interest are known as _______________.
  • Sectional groups
  • Movement groups
  • Interest groups
  • Specialized groups
Match List - I and List - II and select the correct answer using the codes given below the lists :
List - I List - II
A. SriharikotaAtronomical observatory
B. KavalurFast breeder reactor
C. KalpakkamNuclear reactor
D. TrombaySpace launching centre
  • A-3, B-4, C-2, D-1
  • A-4, B-2, C-1, D-3
  • A-4, B-1, C-2, D-3
  • A-1, B-4, C-3, D-2
Name the project which aims to ensure that government services are available to citizens electronically ?
  • Digital India Project
  • Ebiz project
  • E-kranti Project
  • National Optical Fibre Network Project
Bt seed is associated with ___________.
  • Rice
  • Wheat
  • Cotton
  • Oilseed
Insect resistant cotton plants have been genetically engineered by inserting a gene from a/ an _____________.
  • Virus
  • Bacterium
  • Insect
  • Plant
Which space shuttle met with an accident at the time of landing, in which Indian Astronaut Kalpana Chawla died in Febrauary 2003?
  • Colombia
  • Challenger
  • Discovery
  • PSLV
A genetically engineered form of brinjal known as the Bt brinjal has been developed. The objective of this is ___________________.
  • To make it pest-resistant
  • To improve its taste and nutritive qualities
  • To make it drought resistant
  • To make its shelf-life longer
What is the purpose of the 'restriction enzymes' used in the genetic engineering?
  • Restricts the protein synthesis in cells
  • Cut DNA at specific base sequence
  • Degrade harmful protein
  • Join different DNA fragments
Which one among the following is the 'chemical knives' (scissors) used in genetic engineering?
  • Polymerase
  • Ligase
  • Endonuclease
  • Plasmid
The cutting of DNA at specific locations became possible with the discovery of _________.
  • Cloning
  • Vectors
  • Restriction endonuclease
  • Restriction enzyme
The method of reproduction of new plants by cells instead of seed is known as _____________.
  • Tissue culture
  • Mutation
  • Antibiosis
  • Recombination
Transgenic plants are _______________________.
  • Produced by a somatic embryo in artificial medium
  • Generated by introducing foreign DNA into a cell and regenerating a plant from that cell
  • Produced after protoplast fusion in artificial medium
  • Grown in artificial medium after hybridization in the field
Which of the following is not correct regarding Bioculture?
  • Bioculture defines the activity and consolidation of ideas created when the human intersects with the technological
  • It comprises the emerging area bounded by the medical sciences, social science, area studies, culture studies, biotechnology, disability studies, the humanities, and the economic and global environment
  • It assumes that in bioculture there's a diverse way to know that workings of the body and mind, and that these are primarily culturally derived, and an experts way of knowing produces specific strong results
  • Here the study of body parts and the minds are not included
What is the purpose of restriction enzymes used in genetic engineering?
  • Restricts the protein synthesis in cells
  • Cuts DNA at specific base sequence
  • Degrade harmful proteins
  • Join different DNA fragments
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?
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 and 2
Consider the following statements
1. Introduction of foreign genes for improving genotype is genetic engineering.
2. Genetically engineered human insulin is manufactured by the use of E.coil.
3. Advancement in genetic engineering has been possible due to discovery of restriction endonuclease.
4. First hormone prepared by genetic engineering is insulin.
Which of the statements given above are correct about genetic engineering?
  • 1,2,3 and 4
  • 1,2 and 3
  • 1 and 2
  • 1,3 and 4
Plasminogen activator or enzyme tPA is used for
  • Stimulating thromboplastin production
  • Clearing turbidity of juices
  • Maintaining plasma content
  • Dissolving blood clots
Researchers are manufacturing Genetically Modified (GM) fungi to produce __________________.
  • Cheaper biofuel
  • Generic drug for treatment of cancer
  • Food supplement
  • Edible oil
At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us?
1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop diseases resistant animal breeds.
Which of the statement(s) given above is/ are correct?
  • 1 and 2
  • Only 2
  • 1 and 3
  • 1,2 and 3
Consider the following statements about world's first cloned pashmina goat
1. Noori is the world's first cloned Pashmina goat.
2. It was developed by the scientists at the Sher-e-kashmir Agriculture University for Science and Technology on March 9,2012.
Which of the following statement(s) given above is/ are correct?
  • Only 1
  • Only 2
  • 1 and 2
  • Neither 1 or 2
By using which one of the following techniques, is DNA fingerprinting done?
  • ELISA
  • RIA
  • Northern blotting
  • Southern blotting
Consider the following statements
1. Antibiotic resistance in micro-organisms present in alimentary canal.
2. Allergic reaction.
3. Toxicity
Which of the above risk(s) is/ are associated with genetically modified food?
  • Only 1
  • Only 2
  • 1 and 2
  • 1,2 and 3
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?
  • 1 and 2
  • 2 and 3
  • Only $$3$
  • All of these
Which one is not False regarding Bionic architecture?
  • It is a movement for the design and construction of expressive building whose layout and lines borrow from natural (i.e. biological) forms.
  • 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.
  • 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.
  • All of the given statements.
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.
  • Only 1
  • Only 2
  • 1 and 2
  • None of the above.
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.
  • 1 and 2
  • 2 and 3
  • 1 and 3
  • Only 3
What do you mean by Biocompatibility?
1. It is related to the behavior of biomaterials in various contexts.
2. The term refers to the ability of a material to perform with an appropriate host response in a specific situation.
3. It is actually a self sufficiency of an organism to ensure its ability to withstand the adverse effect during grafting of a particular organ which is present in every animals.
4. Biocompatibility is the capability of a prosthesis implanted in the body to exist in harmony with tissue without causing deleterious changes.
Select the correct answer using the codes given below.
  • 1,2 and 3
  • 2,3 and 4
  • 2 and 4
  • 1,2 and 4
What is Virotherapy?
  • It is a therapy of treat viral infection in human beings.
  • It is a treatment using biotechnology to convert viruses into therapeutic agents by reprogamming viruses to treat diseases.
  • There are two main branches of virotherapy anti-cancer oncolytic viruses and viral immunotherapy.
  • It is actually used to change harmful viruses into useful one.
Consider the following statements
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.
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
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.
  • 2,3 and 4
  • 1,3,4 and 5
  • 1,2,3 and 4
  • 2 and 4
Which one is known as cruelty free meat?
  • In vitro meet.
  • Meat from natural dead animal.
  • Plant products with animal nutrients.
  • None of the above.
Consider the following items
1. Bone plates
2. Bone cement
3. Contact lenses
4. Breast implants
5. Artificial ligaments and tendons
6. Dental implants for tooth-fixation
7. Joint replacements
8. Skin repair devices (artificial tissue)
In which of the following items, biomaterials are frequently used.
  • 1,3,4,5 and 7
  • 2,3,5,7 and 8
  • 1,4,5,6,7 and 8
  • 1,2,3,4,5,6,7 and 8
Which of the following is not true regarding biometrics?
  • It is used in computer science as a form of identification and access control of humans by their characteristics or traits.
  • Biometric identifiers are often categorised as physiological versus behavioural characteristics.
  • It is not possible to use this technology, to identify individuals in groups that are under surveillance.
  • All of the above.
Nanorobots (nanobots) ____________.
  • Do not exist yet
  • Exist in experimental form in laboratories
  • Are already used in nanomedicine to remove plaque from the walls of arteries
  • Will be used by NASA in the next unmanned mission to Mars
The prefix 'nano' from a _______________.
  • French word meaning billion.
  • Greek word meaning dwarf.
  • Spanish word meaning particle.
  • Latin word meaning invisible.
Which of the following cannot be associated with aspects of biotechnology?
1. Generating higher crop yields with fewer inputs.
2. Lowering volumes of agricultural chemicals.
3. Helps in enhanced nutrition profile.
4. Allows farmers to increase filling farmland.
Which of the following statements given above is/ are correct?
  • 1,2 and 3
  • 2,3 and 4
  • Only 4
  • All of these
Nano technology, in other words, is ______________.
  • Carbon engineering
  • Atomic engineering
  • Small technology
  • Microphysics
The most important property of nano materials is ___________.
  • Force
  • Friction
  • Pressure
  • Temperature
Scientists have developed the peptide based platforms to cure cancer. How?
1. They used bacterial fermentation to bind DNA or small interfering RNA and delivering them into cells to target tumours.
2. These are helpful in silencing the targeted genes.
3. These chimeric peptides have the capabilities to degenerate the tumours.
Select the correct answer using the codes given below.
  • Only 1
  • Only 2
  • 1 and 3
  • All of the above.
Consider about the golden rice
1. It is variety of Oryza glaberrima.
2. It is grown where there is a shortage of dietary vitamin-A.
3. Carotene give carrots their orange colour and is the reason why genetically modified rice is golden.
4. It contains two bacterium and one daffodilas genes.
Select the correct answer using the codes given below.
  • 1,2 and 3
  • 2,3 and 4
  • 2 and 3
  • 1,2,3 and 4
Which of the following can be the best sources for the bioplastics?
1. Vegetable fats and oils
2. Corn starch
3. Microbiota
4. Azolla
5. Pea starch
Select the correct answer using the codes given below.
  • 1,2,4 and 5
  • 1,2,3 and 5
  • 2,3,4 and 5
  • All of the above.
Drop-in biofuels can be obtained from
1. Crop residue
2. woody biomass
3. paddy extract
4. algae
5. dedicated energy crops
Select the correct answer using the codes given below.
  • 1,2 and 3
  • 2,3,4 and 5
  • 1,2,4 and 5
  • All of these
How many oxygen atoms lined up in a row would fit in a one nanometer space?
  • None; an oxygen atom is bigger than 1 nm
  • One
  • Seven
  • Seventy
The cloned sheep 'Dolly' was created through which of the following technique given below?
  • Gene transfer
  • Nuclear transfer
  • Somatic cell transfer
  • Germinal cell transfer.
In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
1. Iris scanning
2. Retinal scanning
3. Voice recognition
Select the correct answer using the codes given below.
  • Only 1
  • 2 and 3
  • 1 and 3
  • 1,2 and 3
Genetically modified (GM) crops contain modified genetic material due to
1. Introduction of new DNA
2. Removal of existing DNA
3. Introduction of RNA
4. Introduction of new traits
Select the correct answer using the codes given below.
  • 1 and 2
  • 1,2 and 3
  • 3 and 4
  • 1,2 and 4
0:0:2


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Class 8 General Knowledge Quiz Questions and Answers