Two genetic loci produce identical phenotypes in cis as well as trans position. They are
A.Pseudoalleles – Genes are present together side by side and they produce related phenotypes are called pseudoalleles. These are distinguished from true alleles through rare crossing over.
B.Multiple alleles – Presence of more than two alleles for a gene is called Multiple alleles. These are present on the same locus of homologous chromosomes.
C.Different genes – Genes which can carry out different functions are called Different genes.
D.Parts of same gene – In every gene, functional part cistron, recombination part recon, mutation part muton are present.
So, the correct option is ‘Pseudoalleles’.