When normal and mutant alleles are present on opposite chromosomes of homologous pair, the heterozygotes are called as
$cis$ heterozygotes
$Homologous$ heterozygotes
$trans$ heterozygotes
None of the above
When a cluster of genes shows linkage behaviour they
When two genetic loci produce identical phenotypes in cis as well as in trans position, they are considered to be
The hybrid produced by cytoplasmic fusion is called
Ischihara chart is used to detect
Sometimes the separation of twins is incomplete and these are borne attached are remain so even after. Such twins are known as