Question

A condition where an individual heterozygous for two pairs of linked genes (AaBb) possesses the two dominant genes on one homologous chromosome pair and two recessive on the other, it is said to be

• A. Cis-arrangement
• B. Trans-arrangement
• C. Partly cis partly trans
• D. More than one option is correct

Answer 1

The correct option is A Cis-arrangement

A.cis – arrangement - two dominant alleles linked on one chromosome is called cis arrangement of genes.

B.Trans arrangement – two dominant alleles present on different chromosomes is called trans arrangement of genes

C.Partly cis partly trans – dominant alleles partly present on same chromosomes and partly present on different chromosomes.

So, the correct option is ‘cis arrangement’.