13-DNA%20Structure

13-DNA%20Structure - DNAStructure Geneticmaterial

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
DNA Structure Genetic material - Patterns of inheritance can be explained by chromosome segregation - How do chromosomes transmit heritable traits? o Chromosomes made of proteins and DNA - Two questions: 1. Which molecule contains the genetic information? 2. What is the structure and mechanism responsible for genetic inheritance? Functions of genetic material - What does genetic material need to do? 1. Store information in stable form 2. Information must be readable 3. Information must be replicated 4. Information must be equally partitioned during cell division 5. Information must change (evolution)      But not too much…  Experimental work on genetic material: Griffith - Performed experiments with virulent (bacteria that cause disease) and nonvirulent  strains of bacteria - Nonvirulent strains were “transformed” o Picked up genetic material from environment o New genetic material would enable them to become virulent (were transformed) Passed on virulence to offspring: is heritable o Transforming principle = heritable genetic material - Provided an experimental system Avery, MacLeod, & McCarty - Used system discovered by Griffith - Set out to identify the “transforming principle” (1944)
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

13-DNA%20Structure - DNAStructure Geneticmaterial

This preview shows document pages 1 - 2. Sign up to view the full document.

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