LIFESCI 15 Lecture Notes - Lecture 5: Human Genome, Y Chromosome, Zygosity
Document Summary
Week 2 lecture 5- inheritance and sex-linked traits. A species can change overtime within a species if there is : variation for a trait, heritability- trait gets passed on, differential reproductive success. The story of his life, from the logbook of the natural history society of brunn (feb. 1865)- gregor mendel spoke on inheritance in pea plants. " there were no questions. An organisms genome is all of its genetic material. Human genome has 46 chromosomes arranged into 23 pairs. Chromosome- linear string of dna folded into compact molecules) Homologous pairs: pairs of chromosomes that are the same length. Chromosomes can be visualized using a karyotype- a picture of all the chromosomes in a cell. By looking at chromosomes, one can see the potential health problems that could be passed down to offspring. Locus- point on chromosome where a certain gene is located, same for homologous chromosomes.
