Biology: Life on Earth (11th Edition)

11th Edition

ISBN: 9780134256283

Author: Audesirk

Publisher: PEARSON

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Concept explainers

DNA and RNA

Deoxyribonucleic acid (DNA) is usually called the blueprint of life. Deoxyribose is a monosaccharide that has a key function in the synthesis of deoxyribonucleic acid. One less oxygen-containing hydroxyl group occurs in deoxyribose sugar. Nucleic acid, d…

DNA as the Genetic Material

DNA, or deoxyribonucleic acid, is a long polymeric nucleic acid molecule discovered in the late 1930s. It is a polymer; a long chain-like molecule made up of several monomers connected in a sequence. It possesses certain characteristics that qualify it a…

Genetics

The significant branch in science which involves the study of genes, gene variations, and the organism's heredity is known as genetics. It is also used to study the involvement of a gene or set of genes in the health of an individual and how it prevents …

DNA Replication

The mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of its own is defined as DNA replication. The DNA molecules utilize a semiconservative method for replication.

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Textbook Question

Chapter 12, Problem 2RQ

Draw the general structure of a nucleotide. Which parts are identical in all nucleotides, and which can vary? Name the four types of nitrogen- containing bases found in DNA.

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Chapter 12, Problem 1RQ

Chapter 12, Problem 3RQ

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Chapter 12 Solutions

Biology: Life on Earth (11th Edition)

Ch. 12 - 1. If a parental DNA strand has the base sequence...Ch. 12 - 2. What happens at the conclusion of DNA...Ch. 12 - An insertion mutation occurs when a nucleotide is...Ch. 12 - The rungs of the DNA double helix consist of any...Ch. 12 - The “rungs” of the DNA double helix are held...Ch. 12 - 1. DNA consists of subunits called_________. Each...Ch. 12 - The subunits of DNA are assembled by linking...Ch. 12 - The “base pairing rule” in DNA is that adenine...Ch. 12 - 4. When DNA is replicated, two new DNA double...Ch. 12 - The DNA double helix is unwound by an enzyme...

Ch. 12 - 6. Sometimes mistakes are made during DNA...Ch. 12 - Describe the experimental evidence that DNA is the...Ch. 12 - 2. Draw the general structure of a nucleotide....Ch. 12 - Describe the structure of DNA. Where are the...Ch. 12 - How is information encoded in the DNA molecule?Ch. 12 - 5. Describe the process of DNA replication. Ch. 12 - How do mutations occur? Describe the principal...Ch. 12 - 1. In an alternate universe, although proteins are...Ch. 12 - Prob. 2AC

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