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Comparative studies on the chromo-some numbers in sheep, goat, and sheep-goat hybrids



Comparative studies on the chromo-some numbers in sheep, goat, and sheep-goat hybrids



Jour Heredity 29(9): 343-350



The diploid numbers in the amnionic cells of the 30-day-old sheep, goat, and sheep X goat hybrid were 60, 54, and 57 respectively. The hybrids were from matings between Angora [female] goats and Merino rams. The largest 4 chromosomes in the cells of the sheep are larger than those of the goat and have a characteristic U- or J-shape. The largest 2 sheep chromosomes were identified in the hybrid. Variations in chromosome numbers were noted in some of the amnionic cells of the 3 animals. In most of the varying cells the number of chromosomes was less than the diploid number.

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