CBSE Questions for Class 8 General Knowledge India: Science And Technology Quiz 10 - MCQExams.com

All of the following are consequences of ingesting excess vitamin C supplements except ____________.
  • frequently causing diarrhea
  • enchancing the action of anticlotting medications
  • being safe at levels up to 300 mg/day
  • interfering with laboratory urine tests for the diagnosis of diabetes
A bio-technique in which ultrasonic sound is used is ______________.
  • Sonography
  • ECG
  • EEG
  • X-ray
Which one of the following chemicals is used to fuse plant protoplasts in genetic engineering?
  • Ethylene
  • Polyethylene glycol
  • Calcium nitrate
  • Sodium hydroxide
Recombinant DNA Technology (Genetic Engineering) allows genes to be transferred
$$1.$$ across different species of plants.
$$2.$$ From animals to plants.
$$3.$$ From micro organisms to higher organisms.
Select the correct answer using the codes given below.
  • Only $$1$$
  • $$2$$ and $$3$$
  • $$1$$ and $$3$$
  • All of the above
Consider the following statements
$$1.$$ Restriction enzymes are used to cut double stranded DNA.
$$2.$$ The mobile genetic element is transposon.
$$3.$$ Satellite DNA is useful tool in forensic science.
Which of the statement(s) given above is/ are true?
  • Only $$1$$
  • Only $$2$$
  • $$1$$ and $$2$$
  • $$1, 2$$ and $$3$$
Study the following statements
$$1.$$ The Southern Blot technique is used for the detection of DNA.
$$2.$$ The Northern Blot technique is used for the detection of RNA.
Which of the statement(s) given above is/ are correct about blotting techniques?
  • Only $$1$$
  • Only $$2$$
  • $$1$$ and $$2$$
  • None of the above
First transgenic mouse grew twice the normal size after drinking.
  • Copper $$(Cu)$$ containing water
  • Iron $$(Fe)$$ containing water
  • Zinc $$(Zn)$$ containing water
  • Radium $$(Ra)$$ containing water
Consider the following statements
$$1.$$ The first transgenic cow is Rosie.
$$2.$$ The milk of first transgenic cow contained the human alpha-lactalbumin.
Which of the statements given above is/ are correct about transgenic cow?
  • Both $$1$$ and $$2$$
  • Only $$1$$
  • Only $$2$$
  • Neither $$1$$ nor $$2$$
Which of the following is correct about the 'Monoclonal antibodies'?
  • Single parent type that attack many antigens
  • Single parent type that attack specific antigen
  • Various parent types that attack many antigens
  • Various parent types that attack single antigen
Hybridoma technology is a new biotechnological approach for commercial production of _______________.
  • Monoclonal antibodies
  • Interferon
  • Antibiotics
  • Alcohol
Consider the following statements
$$1.$$ Stem cell has the ability to develop into any type of cell.
$$2.$$ Tissue plasminogen activator is used for dissolving blood clots.
$$3.$$ Dextran is a plasma expander used in blood transfusion.
Which of the statement(s) given above is/ are correct?
  • Only $$1$$
  • Only $$2$$
  • Only $$3$$
  • $$1, 2$$ and $$3$$
The genetically engineered 'golden rice' is rich in which of the following?
  • Vitamin-A and nicotinic acid
  • B-carotene, vitamin-A and folic acid
  • B-carotene and iron
  • Vitamin - A and niacin
The word organic on a food label is no guarantee that the food is ____________.
  • pesticide free
  • fertilized with manure or vegetable compost
  • grown without hormones or antibiotics
  • produced without genetic modification
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 p.H.
$$3.$$ Resist disease infestation.
Select the correct answer using the codes given below.
  • Only $$1$$
  • $$2$$ and $$3$$
  • $$1$$ and $$3$$
  • All of the above.
Study the following statements
$$1.$$ The first transgenic crop was tobacco.
$$2.$$ A DNA library constitutes a collection of all the DNA fragments of an organism inserted in plasmid.
$$3.$$ Restriction fragment length polymorphism method is used to distinguish DNA of one individual from another.
$$4.$$ Agrobacterium tumefaciens is used extensively for genetic engineering in plant.
Which of the statements given above are true?
  • $$2$$ and $$3$$
  • $$1, 2$$ and $$3$$
  • $$1$$ and $$2$$
  • None of the above
Consider the following statements
$$1.$$ Golden rice is vitamin-A rich
$$2.$$ Replacement of faulty gene by normal gene is called gene therapy.
$$3.$$ Transgenic organisms carrying introduced foreign gene also called genetically modified organism.
Which of the statements given above are true?
  • $$1$$ and $$2$$
  • $$2$$ and $$3$$
  • $$1$$ and $$3$$
  • $$1, 2$$ and $$3$$
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.
  • $$1, 2$$ and $$3$$
  • $$2$$ and $$3$$
  • Only $$4$$
  • $$1, 2, 3$$ and $$4$$
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, inductrial biotechnology, and medicine.
Which of the following statements given above is/ are correct?
  • $$1, 2$$ and $$3$$
  • $$2, 3$$ and $$4$$
  • $$1, 3$$ and $$4$$
  • $$3$$ and $$4$$
Regarding Metabolic engineering, which one is not true.
  • The practice of optimising genetic and regulatory processes with in cells to increase the cells production of a certain substance.
  • Current examples include producing beer, wine, cheese, pharmaceuticals and other biotechnology products.
  • 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.
  • None of the above are false.
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 destruction to blastocysts.
$$4.$$ 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?
  • $$1, 2, 3$$ and $$4$$
  • $$1, 2$$ and $$3$$
  • $$1, 2$$ and $$4$$
  • $$3$$ and $$4$$
Consider the following statements
$$1.$$ Monoclonal antibodies produced in lab by hybridoma technology.
$$2.$$ Hybridoma technology invented by Kohler and Milstein.
$$3.$$ Hybridoma formed by mixing myeloma (cancerous) cell and B-lymphocytes.
Which of the statement(s) given above is/ are correct?
  • $$1, 2$$ and $$3$$
  • $$1$$ and $$2$$
  • Only $$2$$
  • Only $$1$$
Which country has launched the fist Medical Experiment Module called 'Kibo', to be used on the International Space Station?
  • South Korea
  • Japan
  • China
  • Talwan
What is Pig $$26$$?
  • An insulin obtained from the Indian pig using the genetic engineering methods.
  • An energy capsule being used by astronauts as food supplements.
  • First animal to be created by gene editing.
  • A new patent law enforced in USA.
Which of these historical works of art contain nano technology?
  • Lycurgus cup
  • Medieval stained glass windows in churches
  • Damascus steel swords
  • All of the above
In the context of modern scientific research, consider the following statements about lacecube, a particle detector located at South Pole, which was recently in the news:
$$1$$. It is the world's largest neutrino detector, encompassing a cubic kilometre of ice.
$$2$$. It is a powerful telescope to search for dark matter.
$$3$$. It is buried deep in the ice. 
Which of the statements given is/are correct?
  • Only $$1$$
  • $$2$$ and $$3$$
  • $$1$$ and $$3$$
  • $$1, 2$$ and $$3$$
What is Integron?
  • It is a two component gene capture and dissemination system, initially discovered in relation to antibiotic resistance, and which is found in plasmids, chromosomes and transposons
  • A newly developed drug to treat MDR (Multi Drug Resistent) TB with low cost of medicine
  • Highly capable GMOs to resist the very low temperature at Siberian region
  • A response to viral infection when individual infected with the gun powder
Which of the following are the alternate names of the test tube meat?
$$1.$$ Victimless meat.
$$2.$$ Fh meat
$$3.$$ Vat grown meat
$$4.$$ Hydroponic meat
$$5.$$ Cultured meat
$$6.$$ Cruelty free meat
Select the correct answer using the codes given below.
  • $$1, 2, 3, 4$$ and $$6$$
  • $$1, 3, 4, 5$$ and $$6$$
  • $$3, 4, 5$$ and $$6$$
  • $$5$$ and $$6$$
What does the term 'Worm like chain' signifies?
  • The worm-like chain (WLC) model in polymer physics is used to describe the behaviour of semi-flexible polymers; it is the continuous version of the Kratky-Porod model.
  • A king of protein chains that have the capability to tolerate very low as well as very high temperature which is present in very least marine animals.
  • Using the tools of biotechnology, one can synthesise the artificial secondary structure of proteins which are deficient in vegeterians.
  • A newly developed food supplement for astronauts.
During the IXth Plan, the government has started two Micro propagation Technology Parks (MTPs). What could be the objectives of this act?
  • To make the people aware about the plant propagation techniques to raise the afforestation.
  • To provide an effective platform for transfer proven tissue culture technologies to the user agencies and entrepreneurs and acting as an interface between research institutes and industry.
  • To show the world community that India is not lagged behind in the field of plant micro propagation techniques.
  • None of the above.
'Srinidhi' is a new developed variety of __________.
  • Chicken
  • Pig
  • Rice
  • Maize
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 being within minutes of cardiac arrest, and use cryoprotectants to prevent ice formation during cryopreservation.
Select the correct statement.
  • $$1$$ and $$2$$
  • $$2$$ and $$3$$
  • $$1$$ and $$3$$
  • All of these
The tensile strength of a carbon nanotude is ________ times that of steel.
  • $$10$$
  • $$25$$
  • $$100$$
  • $$1000$$
Who first used the term nano technology and when?
  • Richard Feynaman, $$1959$$
  • Norio Taniguchi, $$1974$$
  • Eric Drexler, $$1986$$
  • Sumio lijima, $$1991$$
The name of the radioactive gas which make it easier to detect underground nuclear tests from air samples is __________.
  • Xenon-133
  • Xenon-135
  • Neon-133
  • Neon-135
Consider the following statements:
The Armed Forces (Special Powers) Act (AFSPA) was declared first time in Manipur in 1958 as foreign trained insurgents had become uncontrollable.
Under the Act, the Army has been deployed to assist the civil administration in the state.
Armed Forces (Special Powers) Act (AFSPA) was passed in 1958 by the Parliament of India.
Which of the statements is/are correct?
  • 1, 2 and 3
  • 1 and 3
  • Only 2
  • Only 1
$$20\ micron =$$ ___________ nm.
  • $$20\times 10^{(-9)}$$
  • $$20\times 10^{9}$$
  • $$200$$
  • $$20000$$
Consider the following statements
$$1.$$ Aerogel is a nano porous material.
$$2.$$ Aerogel is an excellent conductor.
Which statements given above is/ are true?
  • Both $$1$$ and $$2$$
  • Only $$1$$
  • Only $$2$$
  • Neither $$1$$ nor $$2$$
Consider the following statements:
The Fast Breeder Test Reactor (FBTR) is at Kalpakkam, and it is a fore runner to the second stage of the country's nuclear power programme.
Fast reactors use 'Fast' (high energy) neutrons to sustain the fission process, in contrast to water cooled reactors that use thermal (low energy) neutrons.
Which of the above statements is /are correct?
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
Consider the following statements:
BrahMos armed with SU-30 MKI would be a game changer in the Indian ocean.
BrahMos Aerospace is a joint venture between India and Russia.
Which of the above statements is/are correct?
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
The size of a quantum dot is ________ $$m$$.
  • $$5$$
  • $$5\times 10^{(-9)}$$
  • $$5\times 10^{(-10)}$$
  • $$5\times 10^{(-11)}$$
Sukhoi-30 MKI Squadron is not stationed at __________.
  • Tezpur
  • Pune
  • Jamnagar
  • Bareilly
Edward Jenner invented ______________.
  • inoculation of tuberculosis
  • inoculation of AIDS
  • inoculation of polio
  • inoculation of smallpox
'Connect 2 Decode' (C2D) Project is related with ________.
  • the biological and genetic information relating to the mycobacterium tuberculosis (M+b) genome
  • decoding of HYV virus
  • the decoding of Bt Brinjal and its effect on human health
  • none of the above
The Liquid Propulsion Systems Centre (LPSC) of the Indian Space Research Organisation (ISRO) is at ___________.
  • Mahendragiri (Tamil Nadu)
  • Bengaluru (Karnataka)
  • Hyderabad (Andhra Pradesh)
  • Ahmedabad (Gujarat)
In April, 2015, India and France agreed to conclude an inter-governmental agreement in respect of which one of the following platforms?
  • Rafale medium multirole combat aircraft
  • Scorpene submarines
  • Infantry mobility vehicles
  • Precision guided munitions system
Hiva Test which was recently making revs in past time is an indigenously developed detections wit by international centre for genetic engineering and biotechnology, New Delhi is for ________.
  • AIDS
  • Tuberculosis
  • Malaria
  • Rabies
Consider the following statements:
The Department of Atomic Energy (DAE) got permission to locate the India-based Neutrino Observatory (INO) at Singara in Nilgiri district in Tamil Nadu.
The INO is a major underground experimental facility to study the elusive and nearly massless fundamental particles of nature called neutrinos.
Which of the above statements is/are in correct?
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
World's first electric satellite was launched by ___________.
  • Space X
  • NASA
  • European Space Agency
  • ISRO
Consider the following statements:
GSLV- D3 has failed to put in orbit an advanced communication satellite called GSAT-4.
The main highlights of GSAT-4 were its communication system in Ku band.
GAGAN stands for GPS-aided Geo-Augmented Navigation System.
Which of the above statements is/are wrong?
  • Only 1
  • Only 2
  • Only 3
  • None of the above
An Anglo-German team of astronomers has discovered a new planet orbiting a nearby Sun at just the right distance for an Earth-like climate that could support life. The name of new planet is _______.
  • HD40307g
  • HD40308g
  • HE40307g
  • HE40308g
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