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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Gurmeet Singh posted an Question
August 28, 2020 • 18:35 pm
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30 points
30 points
- IIT JAM
- Geology (GG)
Sir, whats wrong with option D 2 if probionts are non living, how they could maintain internal chemical environment.
Which one of the following is correct about the characteristics of protobionts (A) They could maintain an internal chemical environment (B) They were unable to reproduce (C) They could separate combinations of molecules from the surroundings (D) They were Ppartially isolated from the They of surroundings A,B,C B,C,D A,B,D
2 Answer(s)
Answer Now
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Sajan sarthak
D is wrong
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Sajan sarthak
ABC are correct
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Sajan sarthak
no how can it be wrong
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as written in the picture, simple reproduction, but they inorganic showing living properties. but my question they have written, probionts are unable to reproduce. sir i am asking, can they reproduce .?
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Sorry ,B. option also be in correct.
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means ABC option are absolutely correct?
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they have made some mistakes in options I guess.
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yes, making so much confusion
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i also checked now, probiotics can do simple reproduction. and they have wrong options!
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Gurmeet I suggested you to read books are you following
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sir, i do not read books. just dependent on xyz study material
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just bcoz time shortage.
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stratigraphy paleontology these are to be studied from books to challenge your point incase in exam the answer given is wrong.
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but if you study from xyz material then you can't be sure on your answer
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but i printed out amal das gupta (some chapters)
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good
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and i thought (aftr observing PYQs) that , i should mugg up all only previous year concepts only for. these 2 units. strtigraphy , paleontology
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ok
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amal das will be sufficient sir ?
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yes
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Rahul kumar Best Answer
Yes, you are correct. D should be a correct option because protobionts were partially isolated from environment, but, they could not separate combinations of molecules from the surroundings. protobionts exhibit some of the properties associated with life, including reproduction and metabolism, and can maintain an internal chemical environment different from their surroundings. Lab experiments show the spontaneous formation of protobionts from abiotically produced organic compounds.
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sir, can probionts reproduce?.
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Rahul kumar
Yes, Protobionts cannot separate combination of molecules from the surroundings or maintain an internal environment but are able to reproduce.
yes sir, options are wrong.
Yes, option is wrong