His paternal and maternal grandparents were Irish. Both his paternal and maternal grandparents were from Jamaica. Fan charts depict paternal and maternal ancestors. Phenotypic patterns are variant to possible expressions from paternal and maternal genotypes. They do not have separate terms for maternal or paternal grandparents. Differing assistance strategies for maternal and paternal grandmothers have also been demonstrated. Imprints are formed due to the differential methylation of paternal and maternal alleles. The studies suggest sharp contrast between the maternal and paternal component of Parsis. He was named after his paternal grandfather. Her brother went to Brighton to live with his paternal grandparents. Frances was subsequently raised by her mother, aunts, and paternal grandmother. She was named after her paternal grandmother. Cichlids can have maternal, paternal, or biparental care. The 2&colon;1 ratio of maternal to paternal genomes appears to be critical for seed development. Christiaan was named after his paternal grandfather.