Answer:
<em><u>50% </u></em>
Explanation:
f f
F Ff Ff
f ff ff
There are two Ff and two ff
Thus, the percentage of their offspring that would be expected to have feather shanks is 100 = 50%
I believe the answer is the third option. Simply because a topic can be studied quickly or inexpensively doesn’t mean that it is ethical. Topics of study that are politically correct may be seen as ethical for some, but not to others, while a topic that will improve the lives of many would be seen as ethical by the general population.