Several organisms, primarily protists, have what are called intermediate mitotic organization. These protists are intermediate in what sense?

Several organisms, primarily protists, have what are called intermediate mitotic organization.
These protists are intermediate in what sense? 

A) They reproduce by binary fission in their early stages of development and by mitosis when they are mature.
B) They never coil up their chromosomes when they are dividing.
C) They use mitotic division but only have circular chromosomes.
D) They maintain a nuclear envelope during division.
E) None of them form spindles.







Answer: D

MPF reaches its threshold concentration at the end of this stage.

MPF reaches its threshold concentration at the end of this stage. 

A) I
B) II
C) III
D) IV
E) V






Answer: C

At which of the numbered regions would you expect to find cells at metaphase?

At which of the numbered regions would you expect to find cells at metaphase? 

A) I and IV
B) II only
C) III only
D) IV only
E) V only







Answer: C

What is the correct chromosomal condition for one daughter nucleus at telophase of mitosis?

What is the correct chromosomal condition for one daughter nucleus at telophase of mitosis? 

A) A
B) B
C) C
D) D
E) E






Answer: E

You have a series of cells, all of which were derived from tumors, and you first need to find out which ones are malignant. What could you do?

You have a series of cells, all of which were derived from tumors, and you first need to find out which ones are malignant. What could you do? 

A) See which ones are not overproliferating.
B) Find out which ones have a higher rate of apoptosis.
C) Karyotype samples to look for unusual size and number of chromosomes.
D) Measure metastasis.
E) Time their cell cycles.







Answer: C

For a chemotherapeutic drug to be useful for treating cancer cells, which of the following is most desirable?

For a chemotherapeutic drug to be useful for treating cancer cells, which of the following is most desirable? 

A) It is safe enough to limit all apoptosis.
B) It does not alter metabolically active cells.
C) It only attacks cells that are density dependent.
D) It interferes with cells entering G0.
E) It interferes with rapidly dividing cells.





Answer: E