1. Given the following pedigree below, use Punnett squares for each of the following possibilities: a) Xlinked recessive and b) X-linked dominant in order to determine what is the mode of transmission of this trait. Disease allele =XA or Xa, depending on mode of transmission of the disease respectively. Unaffected x chromacomo - y carrier=Normal a) X-linked recessive 1112 b) X-linked dominant I 1 I 2.