Heredity III  sex chromosomes and sex linkage /  [kit] : 
produced by Educational Images Ltd. 
 - 80 slides, 1 sound cassette, 1 instructor's guide ;  in container, 29 X 29 X 8 cm. 
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<br/><br/>Narration: Charles Levy 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sex chomosomes.