BIO 101 Chapter Notes - Chapter 7: Polymerase Chain Reaction, Dna Replication, Cytosine

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olivebutterfly859

5 Oct 2016

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Dna: hereditary molecule of all living org. s, conatins instructions for building an org. (common to all life forms, passed from parent to offspring) Dna sequences determine genetic uniqueness & relatedness of individuals. Dna: a double-stranded molec. that forms spiral structure (double helix: spiral structure formed by two strands of dna nucleotides bound together) Each strand (of dna): nucleotides bonded together in linear sequence: nucleotides: building blocks of dna, each one consists of a sugar, a phosphate, & a base, 4 distinct nucleotides: Cytosine (c: two linear strands of a dna molec. : bound together by complementary pairing of a w/ t and g w/ c. Complementary: fitting together; two strands of dna: complementary pairing: guides dna replication (fundamental part of cell reprod. ) Dna replication: natural process by which cells make an identical copy of dna molecule. Technique used to replicate, & simplify, a specific dna segment. Enables scientist to vastly increase # of copies of specific dna sequences.

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