Question

three genes (a, b, and c) at three loci are being mapped in a particular species. each gene has two alleles, each of which results in a dominant or recessive phenotype. the dominant allele of gene a is inherited with the dominant allele of gene b or c about 50% of the time. however, the dominant alleles of genes b and c are inherited together 14.4% of the time. which of the following statements describes what is happening regarding the inheritance of these genes?
the three genes are linked.
the three genes are showing independent assortment.
gene a is assorting independently of genes b and c, which are linked.
gene a is linked but genes b and c are not.

Explanation:

When genes are linked, they do not assort independently. If two genes (B and C here) are inherited together 14.4% of the time (less than 50%), they are linked. Gene A is inherited with the dominant allele 50% of the time, which is the expected frequency for independent assortment. So gene A assorts independently of genes B and C (which are linked).

Answer:

Gene A is assorting independently of genes B and C, which are linked.