. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PRELIMINARY NOTE ON HETEROCHROMOSOMES IN THE GUINEA PIG. N. M. STEVENS. It is the purpose of this preliminary note on the spermato- genesis of the common guinea-pig merely to state some of the most obvious facts concerning the unequally paired heterochro- mosomes as they appear in the first spermatocytes. In the later growth stages a characteristic heterochromosome (Fig. I, x). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearanc
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. PRELIMINARY NOTE ON HETEROCHROMOSOMES IN THE GUINEA PIG. N. M. STEVENS. It is the purpose of this preliminary note on the spermato- genesis of the common guinea-pig merely to state some of the most obvious facts concerning the unequally paired heterochro- mosomes as they appear in the first spermatocytes. In the later growth stages a characteristic heterochromosome (Fig. I, x). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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