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Chapter 1: Problem 11

What is the genetic code?

Short Answer

Expert verified
The genetic code is a set of rules that dictates how a sequence of nucleotide triplets, or 'codons', in DNA or RNA sequences is translated into proteins in living cells. It is universal to all known forms of life.

Step by step solution

01

Definition

The genetic code is the set of rules that determines how a sequence of nucleotide triplets (codons) in RNA directs protein synthesis and specifies the genetic makeup of an organism.
02

Detailing the structure

It consists of a sequence of three nucleotide bases (triplets) called codons. Each codon corresponds to a specific amino acid, and the sequence of codons in the DNA determines the sequence of amino acids in the corresponding protein.
03

Significance of the genetic code

The genetic code is the same in all living organisms, from the simplest bacteria to the most complex mammals, which suggests that all life shares a common origin. It is also this code that makes genetic engineering possible.

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Most popular questions from this chapter

With regard to biological evolution, which of the following statements is incorrect? Explain why. A. During its lifetime, an animal evolves to become better adapted to its environment. B. The process of biological evolution has produced species that are better adapted to their environments. C. When an animal is better adapted to its environment, the process of natural selection makes it more likely that the animal will reproduce.

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Briefly explain how gene expression occurs at the molecular level.
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