BIOL 205 : BIOL 205 - Review Bendena .docx

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3 alternatives models of dna replication : semi conservative replication: the double helix of each daughter dna molecule contains one strand from the original dna molecule and one newly synthesized strand, conservative replication: the parent dna molecule is conserved and a single daughter double helix is produces consisting of two newly synthesized strands, dispersive replication: daughter molecules consist of strands each containing segments of both parental dna and newly synthesized dna. Gel electropheriouses methods- separate dna, rna and protein. Mutation may alter the regulatory sequences of a gene change ability of dan binding proteins to function could: eliminate transcription (making rna, change the rate of transcription, change the amount of transcription (embryo formation, change the developmental timing of transcription (some mutations only occur at a certain age, eliminate transcription in response to environmental change heat shock proteins function to protect the cell and will go to look for proteins being denatured by environment and go and repair it.

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