By Benjamin A. Pierce

ISBN-10: 1429232501

ISBN-13: 9781429232500

ISBN-10: 1429232528

ISBN-13: 9781429232524

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With Genetics: A Conceptual Approach, Ben Pierce brings a grasp teacher’s stories to the introductory genetics textbook, clarifying this complicated topic through concentrating on the massive photograph of genetics suggestions and the way these options hook up with one another.

The new version gains Pierce's signature writing kind, appropriate functions, student-friendly paintings, and emphasis on problem-solving, whereas incorporating the most recent tendencies in genetics examine. the recent variation textual content and LaunchPad media paintings heavily jointly for a continuing adventure for either teachers and students.

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Additional resources for Genetics : a conceptual approach

Example text

The four nitrogenous bases of RNA are adenine, cytosine, guanine, and uracil (U). Genes are located on chromosomes. 14), which consist of DNA and associated proteins. The cells of each species have a characteristic number of chromosomes; for example, bacterial cells normally possess a single chromosome; human cells possess 46; pigeon cells possess 80. Each chromosome carries a large number of genes. Chromosomes separate through the processes of mitosis and meiosis. The processes of mitosis and meiosis ensure that a complete set of an organism’s chromosomes exists in each cell resulting from cell division.

3). The copying and reading of DNA are therefore simpler processes in eubacteria. Genes of prokaryotic cells are generally on a single, circular molecule of DNA—the chromosome of a prokaryotic cell. 2 Eukaryotic chromosomes consist of DNA and histone proteins. (a) DNA wraps around the histone proteins to form chromatin, the material that makes up chromosomes. (b) A eukaryotic chromosome. ] usually linear DNA molecules (multiple chromosomes). Eukaryotic cells therefore require mechanisms that ensure that a copy of each chromosome is faithfully transmitted to each new cell.

C. d. e. Compare and contrast the following terms: Eukaryotic and prokaryotic cells Gene and allele Genotype and phenotype DNA and RNA DNA and chromosome CHALLENGE QUESTIONS Introduction 25. The type of albinism that arises with high frequency among Hopi Native Americans (discussed in the introduction to this chapter) is most likely oculocutaneous albinism type 2, due to a defect in the OCA2 gene on chromosome 15. Do some research on the Internet to determine how the phenotype of this type of albinism differs from phenotypes of other forms of albinism in humans and which genes take part.

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Genetics : a conceptual approach by Benjamin A. Pierce

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