Use D to denote your dominant gene and d to denote your rece
     Use \"D\" to denote your dominant gene, and \"d\" to denote your recessive gene.  a. Is this a dominant or recessive trait? ___ Explain why.  b. What are the genotypes of I-1 and I-2? 
  
  Solution
a)It is dominant (D) as two copies of genes are present showed bu circle and square
b)The genotupe of I-1 is Pp while of I-2 is P

