Question

chromosomal inheritance: match each event with the appropriate stage of meiosis
match each event with the appropriate stage of meiosis.
each homologue moves
to one pole, taking both
sister chromatids with it.
dna replication occurs
centromeres split
nuclear membrane re-
forms
chromosomes remain
duplicated
spindle begins to form
one member of each
homologous pair goes to
one pole of the cell, while
the other member goes to
the opposite pole.
sister chromatids remain
attached
sister chromatids
separate and are pulled
to opposite poles of the
cell
chromosomes change
from duplicated state to
unduplicated state
crossing over occurs
kinetochore microtubules
shorten
chiasmata break
chromosomes begin to
condense
anaphase i only
anaphase ii only
neither anaphase i nor
anaphase ii
both anaphase i and
anaphase ii

Explanation:

• Anaphase I only: Each homologue moves to one pole, taking both sister chromatids with it; One member of each homologous pair goes to one pole of the cell, while the other member goes to the opposite pole; Chiasmata break.
• Anaphase II only: Centromeres split; Sister chromatids separate and are pulled to opposite poles of the cell; Chromosomes change from duplicated state to unduplicated state.
• Neither anaphase I nor anaphase II: DNA replication occurs; Nuclear membrane reforms; Chromosomes remain duplicated; Spindle begins to form; Kinetochore microtubules shorten; Chromosomes begin to condense.
• Both anaphase I and anaphase II: Sister chromatids remain attached.

Answer:

• Anaphase I only: Each homologue moves to one pole, taking both sister chromatids with it; One member of each homologous pair goes to one pole of the cell, while the other member goes to the opposite pole; Chiasmata break.
• Anaphase II only: Centromeres split; Sister chromatids separate and are pulled to opposite poles of the cell; Chromosomes change from duplicated state to unduplicated state.
• Neither anaphase I nor anaphase II: DNA replication occurs; Nuclear membrane reforms; Chromosomes remain duplicated; Spindle begins to form; Kinetochore microtubules shorten; Chromosomes begin to condense.
• Both anaphase I and anaphase II: Sister chromatids remain attached.