AP BIOLOGY

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EVOLUTION

THE ORIGIN OF LIFE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is thought to be the correct sequence of these events, from earliest to most recent, in the evolution of life on Earth? 1. origin of a protocell. 2. origin of organic monomers 3. origin of polymer replication 4. origin of polymers being able to do some work. 5. origin of monomers joining into polymers.
A
5, 3, 2, 1, 4
B
4, 1, 2, 3, 5
C
3, 1, 4, 2, 5
D
2, 5, 4, 3, 1
Explanation: 

Detailed explanation-1: -Solution : The sequential manner of event of origin of life is as follows. <br> ‘underset("IV. Formation of DNA-based genetic system.")underset(darr)underset("I. Formation of protobionts")underset(darr)underset("III.

Detailed explanation-2: -The correct option is A II, III, I, IV.

Detailed explanation-3: -Protobionts were aggregated abiotic molecules surrounded by a membrane, they were formed as unstable monomers became stable polymers. They were able to maintain an internal chemical environment separated from the external environment.

Detailed explanation-4: -A monomer is a molecule of any class of organic compounds that can bind chemically to the same molecules or other compounds to form a large molecule or polymer containing large number of repeating units of monomers. Polysaccharides, polypeptides, and polynucleotides are some of the biopolymers in living cells.

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