div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentmedical-muscle-composition-is-influenced-by-a-genetic-marker-in-the-actn3-genehtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: medical23andmecom · Muscle composition is influenced by a genetic marker in the ACTN3 gene ACTN3 The ACTN3 gene contains instructions for making alpha-actinin-3 a protein found loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsnetreader034viewer20220505025f9440fb76458a536f14f6a1html5thumbnails1jpg width=140 height=200 divdiv