BISC 100 - Lecture 23: DNA RNA

CELLS CONTAIN THOUSANDS OF DIFFERENT PROTEINS

THE SEARCH FOR THE GENETIC MATERIAL

FREDERICK GRIFFITHS

OSWALD AVERY

THE GENTIC INSTRUCTION OF VIRUSES
ARE CONTAINED IN DNA

ROSALIND FRANKLIN

WATSON AND CRICK (1953)

DNA POLYNUCLEOTIDE

CHEMICAL PROPERTIES OF THE THREE CHEMICAL
COMPOUNDS IN NUCLEOTIDES

DNA vs RNA

DNA REPLICATION
Making more DNA in a cell

How does information in DNA is given
to make proteins?

FLOW OF GENETIC INFORMATION

Translation is divided into three phases:

MUTATIONS: 2 Types

There are many ways chromosomes may rearrange:
Chromosomes break naturally or due to exposure
to radiation