BIOL 1116 Lecture Notes - Lecture 1: Asexual Reproduction, Sexual Reproduction, Homeostasis

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* bacteria, achaea and eukaryotes differ from each other in many ways: * all organisms share a set common features (see seven. Characteristics of life): all organisms are made of one or more cells, dna as their genetic blueprint by genetic code, transcribe and translate proteins, use proteins for structure and functions. * dna comes in the form of chromosomes. Within the cell => there is a nucleus and inside the nucleus, there are chromosomes made of coiled strands of dna. * 20 x 10(6) km of dna inside our body"s cells. * made of chemical unit called nucleotides (the alphabet of. * gene => sequence along the strands of dna, containing information to make proteins. * each species has its own nucleotide sequence contributing to life"s diversity. Biology connected into lives: human population growth, climate change, population, endangered species, nutrition. Gene expression - process in which gene"s information is converted into the structures and functions of a cell.

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