Long-haired and short-haired rabbits

A rabbit breeder carried out the following breeding with six different rabbits. Here the results of the three crosses.  

Cross 1

Cross 2

 Cross 3

 

a)
i)
 
ii)
Which characteristic, long hair or short hair, is dominant?     _______________
 
Give evidence for your answer.
 

 
 
b)
Using the letters H and h to represent hair length in rabbits, complete:
 
 
i)
 
The genotypes of the parent rabbits in Cross 3 are __________ and __________
 
  ii)
The punnet square to show Cross 1 is:
 

 
c)
The breeder wanted to establish a pure (true) breeding strain of short-haired rabbits.
 
  i)
Which of the parent rabbits (numbered 1-6) would most likely be chosen? 
 
Number     _________
 
  ii)
The offspring of which cross (1, 2 or 3) would most likely be chosen?
 
Cross     __________