The grades of a science test are normally distributed. thanh finds that his grade on the test has a z-score of –2.5. which of the following statements must be true?

a. thanh’s grade is 2.5 standard deviations below the mean of the test grades.

b. thanh’s grade is 2.5 points below the mean of the test grades.

c. thanh’s grade is 2.5 standard deviations above the mean of the test grades.

d. thanh’s grade is 2.5 points above the mean of the test grades.

Match the types of competition to their descriptions

Use the above pedigree for questions 1,2, and 3 1. what kind of genetic disorder is represented in the pedigree? a. recessive b. dominate refer to the pedigree in question 1. 2. is the mutated gene in this disorder located on a sex chromosome (x or y) or an autosome? a. sex chromosome b. autosome refer to the pedigree in question 1. 3. which generation has individuals that you are certain are heterozygous for the mutated gene? a. generation 1 b. generation 2 c. generation 3

What is the starting point in replication called