A study of gene dosage effects in N-type sheep has been made using the fibre type array method and the
medullometer method developed by Elphick and McMahon. As the position was complicated by gradients
occuring in the fibre type arrays and total fleece medullation over the body, the study on each sheep
was made in the seven positions: back, withers, side, shoulder, shoulder patch, neck and britch, this
being to see what gradients were present and how these changed with increasing N-gene dosage.