BIS 101 Notes 1-3-11

BIS 101 Notes 1-3-11 - BIS 101 1/3/11 Lecture 1 I. Central...

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BIS 101 1/3/11 Lecture 1 I. Central Dogma of Biology: DNA (replication) (transcription) RNA (translation) Protein o Gregor Mendel: the founder of genetics o You can view genetic variation in many levels from Organism > cells > nucleus > chromosomes > DNA DNA is what is considered the genetic material o Chromatin: mixture of DNA + proteins o Homologous pairs (homologs) o Sex chromosomes XX=female, XY=male Sometimes female birds have Z or W chromosomes as well Male birds can also have ZZ o Autosomal chromosomes (autosomes) The other 22 pairs of chromosomes A---b----------o-------d-------- A---b----------o--------D------ o is the centromere A and B are homozygous genotype, both copies of the allele are the same D and d are heterozygous II. DNA Structure and Function o Each DNA strand is the template for the production of a new strand o DNA Polymerase runs from 5’ to 3’ helps with the process of DNA replication Semi-conservative DNA replication
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BIS 101 Notes 1-3-11 - BIS 101 1/3/11 Lecture 1 I. Central...

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