For the following question, match the key event of meiosis with the stages listed below. I. Prophase I V. Prophase II II. Metaphase I VI. Metaphase II III. Anaphase I VII. Anaphase II IV. Telophase I VIII. Telophase II

For the following question, match the key event of meiosis with the stages listed below.
I. Prophase I V. Prophase II
II. Metaphase I VI. Metaphase II
III. Anaphase I VII. Anaphase II
IV. Telophase I VIII. Telophase II 

Tetrads of chromosomes are aligned at the equator of the spindle; alignment determines independent assortment.

A) I
B) II
C) IV
D) VI
E) VIII


Answer: B

Synaptonemal complexes form or are still present. A) I only 

B) I and IV only
C) I and VIII only
D) II and VI only
E) I, II, III, and IV only


Answer: A

Centromeres of sister chromatids disjoin and chromatids separate. 

A) II 

B) III
C) IV
D) V
E) VII


Answer: E

To view and analyze human chromosomes in a dividing cell, which of the following is/are required?

To view and analyze human chromosomes in a dividing cell, which of the following is/are required? 

A) electron microscope
B) radioactive staining
C) fluorescent staining
D) DNA stain and a light microscope
E) a stain particular to human cells





Answer: D

When we see chiasmata under a microscope, that lets us know which of the following has occurred?

When we see chiasmata under a microscope, that lets us know which of the following has occurred? 

A) asexual reproduction
B) meiosis II
C) anaphase II
D) prophase I
E) separation of homologs






Answer: D

A tetrad includes which of the following sets of DNA strands?

A tetrad includes which of the following sets of DNA strands? 

A) two single-stranded chromosomes that have synapsed
B) two sets of sister chromatids that have synapsed
C) four sets of sister chromatids
D) four sets of unique chromosomes
E) eight sets of sister chromatids





Answer: B

Experiments with cohesins have found that

Experiments with cohesins have found that 

A) cohesins are protected from destruction throughout meiosis I and II.
B) cohesins are cleaved from chromosomes at the centromere before anaphase I.
C) cohesins are protected from cleavage at the centromere during meiosis I.
D) a protein cleaves cohesins before metaphase I.
E) a protein that cleaves cohesins would cause cellular death.







Answer: C

Whether during mitosis or meiosis, sister chromatids are held together by proteins referred to as cohesins. Such molecules must have which of the following properties?

Whether during mitosis or meiosis, sister chromatids are held together by proteins referred to as cohesins. Such molecules must have which of the following properties? 

A) They must persist throughout the cell cycle.
B) They must be removed before meiosis can begin.
C) They must be removed before anaphase can occur.
D) They must reattach to chromosomes during G1.
E) They must be intact for nuclear envelope reformation.






Answer: C