Linked genes (loci) where both dominant alleles are positioned on one chromosome and both recessive alleles are positioned on the other chromosome. In other words: one chromosome carries gene combination “AB” and the other chromosome carries gene combination “ab”.
BT: linked genes << coupling phase
RT: crossing-over
Related Term: crossing-over
Repulsion phase
Linked genes (loci) where each chromosome carries a recessive and a dominant allele. In other words: one chromosome carries gene combination “Ab” and the other chromosome carries gene combination “aB”.
BT: linked genes << repulsion phase
RT: crossing-over