Biology 1001A Final: Cycle 2 Lecture Notes
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4 Apr 2017
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Evolution only works if there"s variation in a population. Natural selection is only possible because of genetic variation in a population. Natural selection explains much about evolutionary change, but not all. Clicker question: which stage of mitosis is represented by this image. None of the above, this is not mitosis. Genome is all of the dna sequence in one copy of an organism"s chromosomes. Nuclear genome = 1 copy of all dna in nuclear chromosomes. Dna is in the nucleus and mitochondria (and chloroplasts) Mitochondrion (and chloroplast) dna is circular n represents one copy of all of an organism"s nuclear chromosomes. C represents the amount of dna in one set of an organism"s nuclear chromosomes. Doubles during s phase when chromosomes are replicated and reverts after mitosis. Inheritance of genetic variation from one cell generation to another. Cells that are actively dividing are called cycling. Single celled zygote divides like crazy in the embryo.
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