Daily Current Affairs Quiz
Current Affairs Quiz Nov. 2020-Part-II
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Important Quiz for UPSC IAS Exam:
The following Quiz is based on the Hindu, Indian Express, PIB and other important news sources. Solving these questions will help retain both concepts and facts relevant to UPSC IAS Civil Services examination.
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Question 1 of 5
1. Question
Q. NASA’s sonification project recently seen in news is related to
Correct
ans.c
While telescopes offer glimpses of outer space by translating digital data into stunning images, NASA’s Chandra X-Ray Center (CXC) has gone a step further by unveiling a new ‘sonification’ project that transforms data from astronomical images into audio.Incorrect
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Question 2 of 5
2. Question
Q.The term ‘Brute Force Acquisition’ is related to
Correct
ans.c
Brute force acquisition can be performed by 3rd party passcode brute force tools that send a series of passcodes / passwords to the mobile device. This technique uses trial and error in an attempt to create the correct combination of password or PIN to authenticate access to the mobile device.Incorrect
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Question 3 of 5
3. Question
Q.The polarimetry technique is recently in news is related to which of the following?
Correct
ans.a
The Polarimetry is a sensitive, nondestructive technique for measuring the optical activity exhibited by inorganic and organic compounds.
• A compound is considered to be optically active if linearly polarized light is rotated when passing through it.
• A team of astronomers has discovered that the closest known brown dwarf, Luhman 16A, shows signs of cloud bands similar to those seen on Jupiter and Saturn.
• The researchers used an instrument on the Very Large Telescope in Chile to study polarized light from the Luhman 16 system. Polarization is a property of light that represents the direction that the light wave oscillates.
• The polarimetry technique is not limited to brown dwarfs, it can also be applied to exoplanets orbiting distant stars, the atmospheres of hot, gas giant exoplanets are similar to those of brown dwarfs.Incorrect
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Question 4 of 5
4. Question
Q. Which of the following statements are correct regarding the general difference between plant and animal cells ?
1. Plant cells have cellulose cell walls whilst animal cells do not.
2. Plant cells do not have plasma membrane unlike animal cells which do.
3. Mature plant cell has one large vacuole whilst an animal cell has many small vacuoles.Select the correct answer using the code given below :
Correct
Incorrect
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Question 5 of 5
5. Question
Q. With reference to RT-PCR Test, consider the following statements:
1. It was invented by Kary Mullis.
2. It uses copies of a segment of DNA to detect viruses.
Which of the statements given above is/are incorrect?Correct
ans.d
- Kary Mullis, the American biochemist invented the PCR technique. He was awarded the Nobel Prize for Chemistry in 1993.
- Under the test, copies of a segment of DNA (deoxyribonucleic acid) are created using an enzyme called Polymerase.
- The ‘chain reaction’ signifies how the DNA fragments are copied exponentially, where one is copied into two, the two are copied into four, and so on.
- A fluorescent DNA binding dye called the “probe” is added to DNA, which shows the presence of the virus on a fluorometer.
- Covid-19 is made of RNA (ribonucleic acid), so to detect it, RNA is converted into DNA using a technique called reverse transcription.
- Then the copies of the DNA are then made and amplified.
Incorrect