Scientists Believe Polysaccharides Played Little Role,if Any,in Chemical Evolution

question 20

Multiple Choice

Scientists believe polysaccharides played little role,if any,in chemical evolution.Which of the following is true of polysaccharides,which leads scientists to discount them as the first life-forms?

• A)They catalyze chemical reactions.
• B)There is complementary pairing between monosaccharides,so they can provide the information for copying themselves.
• C)Glycosidic linkages form spontaneously between monosaccharides.
• D)None of A,B,or C is true-they are all false.

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