A species of squid can be either red (R) or blue (r) and it can be either elongated (E) or short (e).
The phenotype of a RrEE squid will be
.
The phenotype of a rree squid will be
The phenotype of a rrEE squid will be
The phenotype of a RrEE squid will be red and elongated.
The phenotype of a rree squid will be blue and short.
The phenotype of a rrEE squid will be blue and elongated.