Sam (father)DDhomozygous dominant
Sally (mother)ddhomozygous recessiveSusan (child)Ddheterozygous
Both "D" and "d" allele
As per the principle of segregation proposed by mendel, an allele pair can split in to two during cell division in a way such that it can give both of its allele (with in an allele pair) to its offspring.
Thus by that logic anyone with a genotype Dd, can segregate its allele pair to pass both "D" and "d" allele to its offspring.
typically, most spiders possess eight eyes. however, others have as many as 12, and some don't have any. these eyes are for detecting light from dark, deciphering shapes and for gathering their prey.