Identify the muscle(s) that is/are primarily responsible for holding the head of the humerus in the glenoid cavity.

rRNA sequence comparisons are useful for determining evolutionary relationships

Indicate whether this statement is true or false.

A cell with two of each kind of chromosome is called a

The probability that one event or another will occur is based on which of the following?

A. Sum rule B. Product rule C. Chi-square test D. Binomial expansion E. Random sampling error

Suppose a cell lacks functional Shugoshin. What is the predicted effect on cohesin?

A) Cohesin will be cleaved prior to metaphase in mitosis. B) Cohesin will not be cleaved during mitosis or meiosis. C) Cohesin at the centromeres of sister chromatids will be cleaved during meiosis I. D) Cohesin on the arms of sister chromatids will be cleaved during meiosis II. E) Cohesin will be cleaved normally during mitosis and meiosis I.