MBG 2040 Lecture Notes - Dnab Helicase, Helicase, Chromatin

• School: University of Guelph
• Department: Molecular Biology and Genetics
• Course: MBG 2040
• Professor: Mark Baker

Document Summary

Genetics chapter 9: dna and the molecular structure of chromosomes. In 1865, mendel showed that merkmalen (now genes) transmitted genetic information. Many studies were one that demonstrated that the genetic material must perform three essential functions: (1) the genotypic function, replication. The genetic material must store genetic information and accurately transmit that information from parents to offspring, generation after generation. (2) the phenotypic function, gene expression. The genetic material must control the development of the phenotype of the organism. That is, the genetic material must dictate the growth of the organism from the single-celled zygote to mature adult. (3) the evolutionary function, mutation. The genetic material must undergo changes to produce variations that allow organisms to adapt to modifications in the environment so evolution can occur. Other early genetic studies established correlation between patterns of transmission of genes and the behaviour of chromosomes during sexual production, providing strong evidence that genes are usually located on chromosomes.