chap_7-1

chap_7-1 - Chapter 7 part I Chapter 7 problems: 2, 4, 6,...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Chapter 7 part I Chapter 7 problems: 2, 4, 6, 10-12, 14, 28, 35 Gene = Usually a specific protein-encoding segment of DNA in a discrete region of a chromosome All genes are not necessarily protein-encoded Anatomy and Function of a Gene Dissection through Mutation Mutations: Primary tools of genetic analysis Mutations are heritable changes in base sequences that modify the information content of DNA. Forward mutation – changes wild-type (WT) to different allele Reverse mutation – causes novel mutation to revert back to wild-type Wild-type mutant wild-type Fig. 7.2 Substitution Transition Transversion Deletion Insertion DNA piece cut away and flipped 180˚ Inversion Reciprocal translocation Classes of Mutations Observations of mutation rates Mutations affecting phenotype are rare (6 x 10-6 mutations per gene per gamete) Different genes mutate at different rates Rate of forward mutation is higher than rate of reverse mutation Why? Are mutations spontaneous or induced...
View Full Document

This note was uploaded on 02/03/2011 for the course BIOL 2153 taught by Professor Larkin during the Fall '03 term at LSU.

Page1 / 22

chap_7-1 - Chapter 7 part I Chapter 7 problems: 2, 4, 6,...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online