This is the Day-6 questions of the CAF Revision plan for prelims. The questions are based on the syllabus as provided in the schedule. Aspirants are requested to go through the detailed CAF strategy to understand the need of the UPSC prelims and to prepare well for the same. Attempt the questions honestly. The key answers and explanations of this test will be live at 9.00pm. The maximum time to attempt the 20 questions is 25 minutes.
Q.1) Which of the following constitutes the part of nutrients that are essential for human body?
- Carbohydrates
- Proteins
- Fats
- vitamins
- minerals.
Choose the correct answers from the codes given below
(a) 1, 2 and 5 only
(b) 1, 2, 3 and 4 only
(c) 1, 2, 3, and 5 only
(d) All the above
Q.2) Consider the following pairs
| Vitamins/minerals | Deficiency disease symptoms |
| 1. Vitamin A | loss of vision in darkness |
| 2. Vitamin C | Weakness |
| 3. Iron | wounds take longer time to heal |
Which of the pairs is/are correctly matched?
(a) 1 only
(b) 3 only
(c) 1 and 3
(d) 1, 2 and 3
Q.3) Consider the following statements about Movements of Muscles.
- Muscles work in pairs.
- A muscle can only pull. It cannot push.
Which of the above statements is/are correctly matched?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) None
Q.4) Consider the following statements about the cell organelles.
- The ribosomes, which are present in all active cells, are the sites of protein manufacture.
- Lysosomes help to keep the cell clean by digesting any foreign material as well as worn-out cell organelles.
Which of the above statements is/are incorrect?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) None
Q.5) Which of the following are the macronutrients required by plants?
- Nitrogen
- phosphorus
- potassium
- calcium
- magnesium
Choose the correct answers from the codes given below
(a) 1, 2 and 5 only
(b) 1, 3, 5 only
(c) 1, 2, 3, and 5 only
(d) All the above
Q.6) Consider the following:
(1) Birds
(2) Dust blowing
(3) Rain
(4) Wind blowing.
Which of the above spread plant diseases?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1, 2 and 4 only
(d) All the above
Q.7) With reference to the Genetically Modified mustard (GM mustard) developed in India, consider the following statements:
- GM mustard has the genes of a soil bacterium that give the plant the property of pest-resistance to a wide variety of pests.
- GM mustard has the genes that allow the plant cross-pollination and hybridization.
- GM mustard has been developed jointly by the IARI and Punjab Agricultural University.
Which of the statements given above is/are correct?
(a) 1 and 3 only
(b) 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
Q.8) Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss?
- Hard and waxy leaves
- Tiny leaves
- Thorns instead of leaves
Select the correct answer using the code given below
(a) 2 and 3 only
(b) 2 only
(c) 3 only
(d) 1, 2 and 3
Q.9) Consider the following statements:
- In tropical regions, Zika virus disease is transmitted by the same mosquito that transmits dengue.
- Sexual transmission of Zika virus disease is possible.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Q.10) In the context of the developments in Bioinformatics, the term ‘transcriptome’, sometimes seen in the news, refers to
(a) a range of enzymes used in genome editing
(b) the full range of mRNA molecules expressed by an organism
(c) the description of the mechanism of gene expression
(d) a mechanism of genetic mutations taking place in cells
Q.11) ‘Mission Indradhanush’ launched by the Government of India pertains to
(a) immunization of children and pregnant women
(b) construction of smart cities across the country
(c) India’s own search for the Earth-like planets in outer space
(d) New Educational Policy
Q.12) Which of the following statements is/are correct?
Viruses can infect
1. bacteria
2. fungi
3. plants
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Q.13) In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person?
- Iris scanning
- Retinal scanning
- Voice recognition
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Q.14) Consider the following diseases
- Diphtheria
- Chickenpox
- Smallpox
Which of the above diseases has/have been eradicated in India?
(a) 1 only
(b) 3 only
(c) 2 and 3 only
(d) All the above
Q.15) Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to
- resist drought and increase absorptive area
- tolerate extremes of PH
- Resist disease infestation
Select the correct answer using the codes given below:
(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3
Q.16) Which of the following diseases can be transmitted from one person to another through tattooing?
- Chikungunya
- Hepatitis B
- HIV-AIDS
Select the correct answer using the codes given below.
(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3
Q.17) 2. Consider the following minerals
- Calcium
- Iron
- Sodium
Which of the minerals given above is/are required by human body for the contraction of muscles?
(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3
Q.18) Recombinant DNA technology (Genetic Engineering) allows genes to be transferred
- across different species of plants
- from animals to plants
- from microorganisms to higher organisms
Select the correct answer using the codes given below.
(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3
Q.19) Fruits stored in a cold chamber exhibit longer storage life because
(a) exposure to sunlight is prevented
(b) concentration dioxide in the is increased of carbon environment
(c) rate of respiration is decreased
(d) there is an increase in humidity
Q.20) Improper handling and storage of cereal grains and oilseeds result in the production of toxins known as aflatoxins which are not generally destroyed by normal cooking process. Aflatoxins are produced by
(a) bacteria
(b) protozoa
(c) moulds
(d) viruses