Biology 1202B Lecture Notes - Lecture 17: Telomere, Haplotype, Encode
15 Mar 2017
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Chromosomes spread organized into a karyotype: each pair consists of one maternal and one paternal chromosome. Banding pattern of dye provides genetic landmarks: dye stains in a consistent fashion, pattern compared to standard. Large chromosome abnormalities can be detected: abnormal chromosome number, ex. Extra chromosome 21 -> down syndrome: abnormal chromosome structure, duplication. H. sapiens: human complexity is not due to having more genes. finished sequence: still sequence missing, 3. 09 gb of dna, 22,287 gene loci, *now ~ 20,687 genes ->remember around 20,000, 1. 2% of genome codes for protein, to this day, the human genome is still not finished. Human complexity is not due to having more genes. Rather, it is due to regulation of those genes. Of the genes whose function is classified, what is the function of the largest category of human genes: transcription factors, our genome is filled with genes that regulate other genes.
