General Science Questions Practice Question and Answer
8 Q: Is jean?
2167 15e58965303536c49fd25787e
5e58965303536c49fd25787e- 1A part of the liverfalse
- 2A part of the RNAfalse
- 3A portion of chromosomesfalse
- 4A part of DNAtrue
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Answer : 4. "A part of DNA"
Q: In the following is not an example of refraction of light.
2165 05ee86b3581b3dd0cad84b919
5ee86b3581b3dd0cad84b919- 1Twinkling effect of starsfalse
- 2Miragesfalse
- 3Bending of light while passing through a mediumfalse
- 4lateral inversiontrue
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Answer : 4. "lateral inversion"
Q: Which best describes genetic mutations? 2161 05b5cc68be4d2b4197774c3a1
5b5cc68be4d2b4197774c3a1- 1Genetic mutations that cause diseases are always passed on to offspring.false
- 2Some inherited genetic mutations can be good for the offspring.true
- 3Different genetic mutations cause few forms of cancer.false
- 4Somatic mutations can be inherited from parents or acquired during life.false
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Answer : 2. "Some inherited genetic mutations can be good for the offspring."
Explanation :
Answer: B) Some inherited genetic mutations can be good for the offspring. Explanation: Mutations are accidents in the copying of DNA. A genetic mutation is a random change in the DNA that is passed on further generations of cells and or organisms. Genetic mutations are accidental changes in the DNA in the germ cells or early in the formation of the embryo. These changes if they are in the germ cell will be passed on to other organisms formed by sexual reproduction or asexual reproduction. An example would be the golden delicious apple. A lost of genetic information due to a mutation resulted in a different color of fruit. Genetic mutations that cause diseases are not always passed on to offspring.
Q: Are fan boxes installed in roofs?
2154 05ef4167fd40ebf3f783329a5
5ef4167fd40ebf3f783329a5- 1Casing-keeping wiringfalse
- 2in cleat wiringfalse
- 3in conduit wiringtrue
- 4Wiringfalse
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Answer : 3. "in conduit wiring"
Explanation :
Most building codes require ceiling fans to be mounted on special fan-rated boxes made of metal or strong plastic with deep-threaded holes for the mounting screws. The box must be mounted firmly by attaching it directly to a framing member or using a fan-rated brace.
Q: Curd contains mainly______acid.
2150 05ee86dea81b3dd0cad84c212
5ee86dea81b3dd0cad84c212- 1Benzoicfalse
- 2Fumaricfalse
- 3Lactictrue
- 4Malicfalse
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Answer : 3. "Lactic"
Q: The metal used to recover copper from a solution of copper sulphate is
2148 05e2fc5ac28cc9f701272a3f6
5e2fc5ac28cc9f701272a3f6- 1Nafalse
- 2Agfalse
- 3Hgfalse
- 4Fetrue
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Answer : 4. "Fe"
Q: Which principle does the optical fiber work on?
2147 15ed4ec825ccf7008ed89c369
5ed4ec825ccf7008ed89c369- 1Full internal reflectiontrue
- 2Refractionfalse
- 3Scatteringfalse
- 4Interferencefalse
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Answer : 1. "Full internal reflection "
Q: What is Calcium sulphate ? 2146 05c2dbd0fbc106c237a22c180
5c2dbd0fbc106c237a22c180- 1epsom saltfalse
- 2blue vitroilfalse
- 3gypsum salttrue
- 4potash alumfalse
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