Phenylketonuria (PKU) genetics can be considered an example of incomplete dominance because _____.

A testcross can be done to determine the genotype of an individual expressing dominant traits or to determine the relative distance between two or more linked genes.

Two linked genes (A) and (B) are separated by 18 mu. A man with genotype AaBb marries a woman who is aabb. The man’s father was AABB. What is the probability that their first child will be Aabb?

With incomplete dominance, a likely ratio resulting from a monohybrid cross would be:

Dominant lethal alleles are more common than recessive lethal alleles.

1) In sex-limited inheritance, only one sex shows the trait.  2) In sex-influenced inheritance, the heterozygotes show different phenotypes depending on sex.

Many species have two representatives of each chromosome. In such species, the characteristic number of chromosomes is called the ________ number. It is usually symbolized as ____.

Which of the following is an example of a stimulus prompt? 

A child you are working with wants to get on the iPad to play games, but the iPad is password-protected with a 4-digit passcode. The child needs the passcode to access the games they want to play on the iPad, which establishes the reinforcing value of the passcode. The passcode in this example is likely functioning as a/an: 

A child is engaging in tantruming behavior consistently and functional assessment results indicate an escape function. Which of the following would be extinction for this scenario?