When someone is heterozygous for a trait, the difference between dominant and recessive traits becomes more important, because the dominant trait is the one which will manifest. In a simple example of the way in which dominant traits work, someone could have two parents who are heterozygous for brown and blue eyes.There is a 25% chance that the child will inherit the bb allele, making him or her blue-eyed.n a simple example of the way in which dominant traits work, someone could have two parents who are heterozygous for brown and blue eyes. There is a 25% chance that the child will inherit the bb allele, making him or her blue-eyed.
As of 2011, the average salary of a live-in housekeeper was $35,000 to $60,000 a year, according to a survey by the Professional Domestic Services and Institute. Those at the executive level, who supervise at least one other housekeeper, earned anywhere between $40,000 and $65,000 a year.
How much do maids cost? On average, the cost of maid service will be anywhere from $15 to $25 per hour, per maid. If more than one maid is going to do the job, then you would take the hourly rate mentioned and multiply it by the number of maids showing up. For example, two maids at $25 an hour would result in a $50 per hour service charge.