เชิงอรรถในบทที่ 4

                ¹Harry Nelson and Robert Jurmain, "Biological Basis of Life," in their Introduction to Physical Anthropology.  (New York : West Publishing Company, 1979), pp. 50 - 59.

                ²G.A. Harrison, "Mendelism in Man," Human Biology.  (Oxford : Oxford University Press, 1977), pp. 97 - 117.

                ³"Gene :  A segment of a DNA molecule with a detectable function sometimes used synonymously with locus and allele," in H. Nelson and R. Jurmain, op. cit.  p. 58.

                ⁴"DNA :   A  large molecule composed of adinine, guanine, cytosine, and thymine plus phosphate and sugar;  DNA carries the genetic code,"  ibid.  p. 491.

                ⁵"RNA :  A nucleic acid found both in the nucleus and the cytoplasm.  RNA differs from DNA in that its sugar component is ribose.  mRNA : Messenger RNA.  This RNA carries genetic information from DNA in the nucleus to the ribosomes in the cytoplasm.  tRNA : transfer RNA.  This RNA brings amino acids together to form a polypeptide chain.  ibid.  p. 496.

                ⁶Harry Nelson and Robert Jurmain, "DNA," Introduction to Physical Anthropology., pp. 63 - 72 ;  G.A. Harrison, "Genes and their Actions," Human Biology., pp. 127 - 139 ;  Curt Stern, "Genes and People," Human Evolution : Readings for Physical Anthropology.  edited by Noel Korn (New York : Holt, Rinehart and Winston, 1978), pp 28 - 45.

                ⁷Victor Barnouw,  "Gregor Mendel's Experiments,"  Physical Anthropology and Archaeology.  (Homewood, Ill.: Dorsey Press, 1978), pp. 53 - 54 ; G.A. Harrison, loc. cit., pp. 97 - 106.

                ⁸Brian M. Fagan, People of the Earth.  (Boston : Little, Brown and Company, 1980), pp. 35 - 44.