Retaking a class, does a difference in units matter?

<p>I am retaking a Biology class I received an F in. The course available is 3 units + 1 unit lab, and the one I failed was 4 units + 1 unit lab. Will this 1 unit make a difference when the retaken class is reviewed on my transcript?</p>

<p>Also, will it look bad if I take the lab in a different semester than the Biology class itself?</p>

<p>Thanks,</p>

<p>A</p>