Answer:
Answer is 3. Hope this helps!
Explanation:
50% punnet square would make AA AB Aa and A Ab
The answer is the idea of mutations was understood by both but Lamarck was able to prove it.
The genotype would be X'Y for the father (he would be colorblind)
The genotype would be X'X for the mother (she would be a carrier)
The offspring would be X'X' _ X'X_ X'Y_ XY
The ratio would be 1:1 normal to colorblind
Hope this was helpful(;
