What makes gene transfer between species possible?

A. All species use the same genetic code.
B. All species have the same genetic material.
C. All species produce the same polypeptides.
D. All species transcribe genes using plasmids.

A

Comments on the G2 forms suggested that the question was poorly worded, and this may be a legitimate point. Many candidates picked option B (same genetic material) rather than A (same genetic code), but it was felt that the word code is precise and often used too loosely by students. It does have a different meaning to “material”.