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Reviews the contributions of Mendel, the Hertwigs, and Miescher to our understanding of modern genetics. Discusses chromosome chemistry in terms of the cytological distribution of nucleic acids, t...
Presents some of the steps and procedures involved in conducting controlled breeding experiments and shows the results of some genetic crosses. Introduces three important areas of genetic research....
Portrays the frequency of mutants in the population gene pool as dependent upon their rate of origination and selection coefficient. Discusses the population fate of dominant lethals (retinoblasto...
Explains the nature and importance of population genetics. Derives the Hardy-Weinberg equilibrium principle for Mendelian (cross-breeding) populations. Points out that though the Hardy-Weinberg la...
Descusses the economic concepts related to land, climate, and major resources in the countries of Colombia, Venzuela, and the three Guianas. Includes scenes of the people and of their ways of life,...
Describes the physical geography of Australia and some of its natural resources, such as wheat, cattle, wool, and timber. Shows how the use of these natural resources has determined the development...
Shows the geological influence on local distribution of plants in the non-glaciated area of southwestern Wisconsin. Highlights many soil conditions and the variety of plants in their region. Catego...
**WARNING: CONTAINS GRAPHIC IMAGES OF LAB TEST ANIMALS** Illustrates the basic techniques of obtaining germfree environment, germfree animals, and methods of germfree miantenance. Demonstrates the...
Sixth in the "Are You Ready for Service?" series. Shows the emotional stresses that must be faced in military service because of homesickness, having to take orders and responsibilities, and havin...
Uses scenes of the geyser area of Yellowstone National Park to portray today's remnents of the earth's activities during formation. Introduces the theme that man has arrived too late to see more th...
Shows the revitalization of Girl Scouting in Kyoto, Japan, after World War II. Pictures the girls making straw shoes, working in paper crafts, practicing first aid, celebrating New Year's in a tra...
Presents rules and playing techniques for girls' basketball as demonstrated by a group of high school players. Distinguishes among various kinds of passing: chest, two-hand underhand, and one-han...
The scene is Virginia, 1765, just after the King's tax proclamation has been read and the legislature is in an uproar. Ensuing events lead to a protest meeting held by patriots at Richmond, at whic...
Illustrates the procedure of administering the Rorschach ink-blot psychological test through a sample interview between a subject and an examiner. Shows the ink-blot first in its true form, then st...
[motion picture] A skilled potter demonstrates the four methods of glaze application: dipping, pouring, brushing, and spraying. Specific techniques and good craftsmanship are emphasized. Proper p...
A skilled potter demonstrates the four methods of glaze application: dipping, pouring, brushing, and spraying. Specific techniques and good craftsmanship are emphasized. Proper preparation of a pie...
Pictures the globe as a model of the earth and points out the representative shape and color of land and water areas. Identifies the continents and compares their sizes and locations. Uses animatio...
[motion picture] Describes the globe as a model of the earth, showing how the globe represents physical and cultural features on the earth's surface, and provides information about direction, dista...