Answers for "how to check checked radio button in jquery"

jQuery check a radio button

// jQuery version 1.6 or above use:  
$("#myRadioID").prop("checked", true);
 
//jQuery versions below 1.6 use:
$("#myRadioID").attr('checked', 'checked');

how to validate the radio button using jquery

BY LOVE
if ($("input[name='Gender']:checked").length == 0)