jsadler9302 jsadler9302
  • 15-03-2024
  • Biology
contestada

Describe which regions of the myofibril shorten during a contraction and which regions do not.
a) The A bands shorten; the I bands remain constant
b) The I bands shorten; the A bands remain constant
c) Both A bands and I bands shorten
d) Neither A bands nor I bands shorten

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