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Chapter 9: Problem 6

What part of the DNA molecule encodes information?

Short Answer

Expert verified
The sequence of nitrogenous bases in the DNA molecule encodes information.

Step by step solution

01

Understanding DNA Structure

DNA (Deoxyribonucleic Acid) is made up of two strands coiled around each other in the form of a double helix. Each strand is composed of repeating units called nucleotides. A nucleotide is comprised of a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base.
02

Recognizing Elements that Encode Information

The nitrogenous bases in DNA structure are of four types: Adenine (A), Thymine (T), Cytosine (C), and Guanine (G). These bases pair with each other in a specific manner: A with T and C with G. These base pairs form the rungs of the DNA 'ladder'.
03

Conclusion

The sequence of these nitrogenous bases encodes the genetic information. Therefore, the part of the DNA molecule that encodes information is the sequence of nitrogenous bases.

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Most popular questions from this chapter

Is downloading a document from the Internet analogous to replicating DNA? Cite a reason for your answer.

List the steps in DNA replication.

s \(1-5\) to a concept it illustrates from a-e. 1\. Density shift experiments 2\. Discovery of an acidic substance that includes nitrogen 鈥� # Match the experiment described in #s \(1-5\) to a concept it illustrates from a-e. 1\. Density shift experiments 2\. Discovery of an acidic substance that includes nitrogen and phosphorus on dirty bandages 3\. "Blender experiments" that showed that the part of a virus that infects bacteria contains phosphorus, but not Sulfur 4\. Determination that DNA contains equal amounts of guanine and cytosine, and of adenine and thymine 5\. Discovery that bacteria can transfer a "factor" that transforms a harmless strain into a lethal one a. First experiments in identifying hereditary material b. Complementary base pairing is part of DNA structure and maintains a symmetrical double helix c. Identification of nuclein d. DNA, not protein, is the hereditary material e. DNA replication is semiconservative

Why must DNA be replicated continuously as well as discontinuously?

How can very long DNA molecules fit into a cell's nucleus?
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