A study has been made of the relationships of sterile Friesian bulls manifesting ‘knobbed’ spermatozoa, and the conclusion drawn that the characteristic defect of the acrosome is due to an autosomal sexlimited recessive gene ( kn ).
No takes yet. Share an insight, caveat, or question.
Donald et al. (1953) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: