PSY 112 Lecture Notes - Lecture 6: Twin, Allosome, Twin Study
9 Dec 2016
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Bio psych: biological roots of mind and behavior. Living beings are made up of cells. Cells could be of many types: size, shape and function. What makes the cells different: proteins they contain. Proteins: specify the role of cell in body. Human skin, shown here at about 200 times its actual size, is made of cells. Chromosomes carry instructions for how to build and operate a body. Chromosomes are made up of coiled strands of dna. The dna molecule has a double helix shape. The rungs of the double helix are made up of complementary chains of adenine (a) thymine (t) guanine (g) and cytosine (c) (g&c) (t&a) Contains 1 single piece of long coiled molecule of dna. Contains genetic instructions for long-term storage of information. Gene: section of dna molecule that contains instructions for how and when to assemble a protein. In sexually reproducing organisms: 23 pairs (=46) chromosomes per cell.
