Biology 1201 Exam 2 Complete Questions And Answers Graded A+

BIOLOGY 1201 EXAM 2 COMPLETE
QUESTIONS AND ANSWERS GRADED A+

◉ Each of the following occurs twice in meiosis, EXCEPT:
a. DNA replication
b. cytokinesis
c. chromosomal separation
d. spindle formation
e. all of these occur twice in meiosis
Answer: a. DNA replication


◉ In meiosis I:
a. homologous chromosomes separate
b. identical chromosome copies separate
c. sister chromatids separate
d. duplicated chromosomes separate
e. all of the above
Answer: a. homologous chromosomes separate


◉ When homologous chromosomes stick together, this is called:
a. crossing over
b. homologous recombination
c. synapsis

, d. centromeres
e. sisterhood
Answer: c. synapsis


◉ When homologous chromosomes break and exchange DNA is is
called:
a. synapsis
b. crossing over
c. independent assortment
d. meiotic recombination
e. this is not possible, the cell would be damaged if this happened
Answer: b. crossing over


◉ The 3 events unique to meiosis all occur in meiosis I. Which of
the following is NOT one of these unique events?
a. synapsis and crossing over
b. homologous pairs of chromosomes lining up on the metaphase
plate
c. individual pairs of sister chromatids lining up on the metaphase
plate
d. sister chromatids remaining joined after cytokinesis
e. all of these occur in meiosis I because there are actually 4
unique events in meiosis I
Answer: c. individual pairs of sister chromatids lining up on the
metaphase plate