The chicken, the egg, and the ancient mariner.
Gibbins
A M
AM
D000822:Animal Husbandry; D000818:Animals; D030801:Animals, Genetically Modified; D001709:Biotechnology; D002645:Chickens / Q000235:genetics*; D004251:DNA Transposable Elements / Q000235:genetics; D004268:DNA-Binding Proteins; D004531:Eggs; D005260:Female; D005822:Genetic Vectors; D008297:Male; D019895:Transposases
D004251:DNA Transposable Elements; D004268:DNA-Binding Proteins; C111652:mariner transposases; D019895:Transposases