Health Sciences 2700A/B Lecture Notes - Lecture 2: Chromosome Abnormality, Allosome, Genomic Imprinting
19 Sep 2016
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Document Summary
23 chromosome pairs (so 46 chromosomes) in each cell. Framework that can help us explain how environmental influences our genes and vice versa. Bidirectional changes of how home, neighbourhood, environment, school, and community, and behavior, and gene expression influence eachother. Rodlike structures within the cells that store and transmit genetic information. Deoxyribonucleic acid, the chemical substance that makes up chromosomes. Segment of dna along the length of the chromosomes. Produces new body cells containing the same genetic information. Genes accomplish this task by sending instructions for making rich assortment of proteins to cytoplasm. Process by which gametes (sex cells) are formed. Y chromosome- short & carries little genetic material. Sex is determined by whether an x or y bearing sperm fertilizes the ovum. Sex cells; made when sperm and ovum combine. Formed when sperm and ovum unite at conception. Result from release and fertilization of two ova.
