In Order for a Recessive Trait to Appear in the Phenotype

question 90

Multiple Choice

In order for a recessive trait to appear in the phenotype:

• A)no genes for it can be present
• B)two genes for it must be present
• C)only one gene for it has to be present
• D)one or two genes for it must be present

---

Definitions:

Point Estimate

Single value used to estimate an unknown population parameter.

Population Parameter

A numerical value that represents a characteristic of an entire population, such as its mean or standard deviation.

Standard Error

The standard deviation of the sampling distribution of a statistic, most commonly the mean; it is used to estimate the accuracy of a sample mean compared to the population mean.

Confidence Interval

A range of values, derived from sample statistics, that is believed to contain the true value of a population parameter with a certain level of confidence.