Answer:
The length of the two wires
Explanation:
A control variable is what you keep the same through the whole experiment so therefore it could be both length and diameter
A punnet square shows you the different possible combinations and trait outcomes of the alleles.
So the answer for (a) is basically the enzyme is breaking down the protein (which is the colored part) and this leaves the clear.
For the constants it would be the film and the temperature that the solution is at
For the final question, they could be improved by using more data and multiple trials
The offspring would be different depending on what type of breeding you did, because of the fact there are different breeding techniques. Co- dominant means it would be patchy with a combination of both, like when breeding cows. The other technique is incomplete dominance, which is where both the colors ( in this case red and white) mix together to make a different color. But to simplify it, it would most likely be half and half because both genes are recessive.
