65.9 MB (1.9 MB compressed)
4800 x 4800 pixels
40.6 x 40.6 cm ⏐ 16.0 x 16.0 in (300dpi)
POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Male Human Sex Chromosomes X and Y (Pair 23), scanning electron micrograph (SEM). There are 23 pairs of chromosomes in most normal human cells. These are allocated pairs 1 - 22 with pair 23 being the sex chromosomes, either xx for females and xy for males. Magnification x17500 at 10 cm wide.
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