Whether DNA (deoxyribonucleic acid) evolved first or the protein, after the evolution of RNA (ribonucleic acid). Introduction: DNA and RNA are the most important biomolecules in an organism. Ribonucleic acid is also used as genetic material in some of the lower organisms. RNA consists of a ribose sugar whereas DNA molecule consists of a deoxyribose sugar, it lacks one oxygen atom at the 2’-position of the ring.

Question

The RNA World Hypothesis suggests that the earliest forms of life used RNA as a genome instead of DNA. Why then do we not see organisms alive today with RNA genomes?

Answer 1

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 6, Problem 17TYK

Summary Introduction

To review:

Whether DNA (deoxyribonucleic acid) evolved first or the protein, after the evolution of RNA (ribonucleic acid).

Introduction:

DNA and RNA are the most important biomolecules in an organism. Ribonucleic acid is also used as genetic material in some of the lower organisms. RNA consists of a ribose sugar whereas DNA molecule consists of a deoxyribose sugar, it lacks one oxygen atom at the 2’-position of the ring.

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Students have asked these similar questions

The RNA World Hypothesis suggests that the earliest forms of life used RNA as a genome instead of DNA. Why then do we not see organisms alive today with RNA genomes?

DNA sequences can act as "tape measures of evolution". Scientists analyzing the human genome sequence were surprised to find that some regions of the human genome that are most highly conserved (similar to comparable regions in other species) don't code for proteins at all. Given what you've learned about "genes" speculate on reasons why this might be so.

Can DNA or other (organic) molecular level structures be programmed to do useful work? Obviously nature has done that but can it be done by engineers/bio-engineers.

Answer 2

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 6, Problem 17TYK

Summary Introduction

To review:

Whether DNA (deoxyribonucleic acid) evolved first or the protein, after the evolution of RNA (ribonucleic acid).

Introduction:

DNA and RNA are the most important biomolecules in an organism. Ribonucleic acid is also used as genetic material in some of the lower organisms. RNA consists of a ribose sugar whereas DNA molecule consists of a deoxyribose sugar, it lacks one oxygen atom at the 2’-position of the ring.

Expert Solution & Answer

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Answer 3

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 6, Problem 17TYK

Summary Introduction

To review:

Whether DNA (deoxyribonucleic acid) evolved first or the protein, after the evolution of RNA (ribonucleic acid).

Introduction:

DNA and RNA are the most important biomolecules in an organism. Ribonucleic acid is also used as genetic material in some of the lower organisms. RNA consists of a ribose sugar whereas DNA molecule consists of a deoxyribose sugar, it lacks one oxygen atom at the 2’-position of the ring.

Expert Solution & Answer

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See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Chemical process in which one or more monomers combine to produce a very large chain-like molecule called a polymer. The functional groups present on the monomers and their steric effects are responsible for polymerization through a sequence of reactions that vary in complexity. There exists a stable covalent chemical bond between monomers that sets apart polymerization from other processes.

Chapter 6, Problem 17TYK

Summary Introduction