BIO SCI 97 Chapter Notes -Heredity, Cpg Oligodeoxynucleotide, Cytosine

39 views1 pages

Document Summary

Epigenome: telomerase is normally turned off in somatic cells, reactivation of telomerase can lead to aging cells that continue to proliferate, a feature of many types of cancer. Principal chemical modifications are addition and removal of acetyl and methyl groups from histones and methylation of cytosine residues in. Methylation of cpg sequences in genomic dna silences genes. Mendel entered the priesthood as a route to higher education. He studied the natural sciences as preparation to become a teacher, though he did not complete his teaching examinations. He decided to pursue his interest in natural science by studying heredity in peas. Mendel obtained 34 different varieties of peas from local suppliers and examined the characteristics of each.