A same meaning or not problem:
Several of the filmmakers are heard but not seen in the film .
Some of the filmmakers are seen , but not heard in the film .
****
[A]: no

A same meaning or not problem:
This may be caused by the loss of three different genes , each of which has different additional effects , resulting in three types of syndromes .
This may be caused by the loss of three different genes , each of which has different additional effects , resulting in three types of syndrome .
****
[A]: yes

A same meaning or not problem:
The high ground was Gentilly Boulevard and U.S. Highway 90 , part of the Old Spanish Trail from St. Augustine , Florida to Los Angeles , California .
The high ground became Gentilly Boulevard and U.S. Highway 90 , part of the Old Spanish Trail from St. Augustine , Florida to Los Angeles , California .
****
[A]: yes

A same meaning or not problem:
MCI migrated the voice and data traffic of most SBS customers to its terrestrial network .
SBS migrated the voice and data traffic of most MCI customers to its terrestrial network .
****
[A]:
no