ANTH-UA 2 Lecture Notes - Lecture 9: Endoplasmic Reticulum, Preformationism, Blending Inheritance
14 Dec 2016
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Homunculus (tiny version of sex cells fully formed individual) Epigenesis: an organism develops from a fertilized egg. Darwin"s blending inheritance: blend of parental phenotypes are passed onto offspring. Nucleus: has a plasma membrane; nuclear dna. Cytoplasm: gel-like material that holds the organelles. Organelles: maintain and help the cell"s functions. Mitochondria: use a metabolic process to produce energy (oxygen to convert sugar to energy) contain their own dna. Endoplasmic reticulum: where genetic info is translated to proteins; have ribosomes which hold rna molecules. Somatic cells: body cells (brain, hair) that contain a full paired set of chromosomes. Stem cells: in the developing embryo, undifferentiated body cells. Gametes: sex cells (sperm/ova) that contain unpaired chromosomes from each parent. Codon: triplet of bases that code for genetic code (an amino acid) Gene: sequence of dna which carries protein synthesizing info. Parent dna strand breaks into two daughter strands.
