In the mammalian genome, maximum number of genes code for the receptors of:

Ans: D. OdorantsIn the mammalian genome, maximum number of genes code for the receptors of odorants."The olfactory receptor (OR) genes constitute the largest gene family in mammalian genomes.Humans have >1,000 OR genes, of which only -40% have an intact coding region and are therefore putatively functional.Odorant receptor genes form the largest gene family in the genome of many animals: for example, the mouse genome contains approximately 1200 of these genes.