Question

cis and trans arrangement in genetics?

Answer 1

Cis Arrangement:- When, two dominant genes are located in one chromosome and both recessive genes located on another chromosome, such type or arrangement is termed as cis-arrangement. It is an original arangement.

Trans-arrangement:- When a chromosome bears one dominant and one recessive gene, and another chromosome also possess one dominant and one recessive gene, such type of arrangement is called trans- amangement. Trans-arrangement is not an original form. It is due to crossing over.