Meiosis Review

Question 1

Steps of Meiosis

Answer 1

interphase
early prophase I
late prophase I
metaphase I
anaphase I
telophase I/ cytokinesis
prophase II
metaphase II
anaphase II
telophase II/cytokinesis

Question 2

Interphase

Answer 2

uncondensed chromosomes replicated in parent cell

Question 3

early prophase I

Answer 3

chromosomes condense, spindle apparatus forms, nuclear envelope begins to break down

synapsis(pairing) of homologous chromosomes (chromosomes smashed together and crossing over occurs)

Question 4

Late prophase I

Answer 4

chiasmata (crossover points) visible, nuclear envelope broken down

Question 5

metaphase I

Answer 5

movement of bivalent chromosomes to metaphase plate to complete; in middle of cell

Question 6

anaphase I

Answer 6

homologous chromosomes separate and move to opposite poles of the spindle apparatus

Question 7

telophase I

Answer 7

homologous are at opposite poles; spindle apparatus disassembles

cytokinesis occurs after, where cell divides and chromosome number is reduced

Question 8

prophase II

Answer 8

spindle apparatus reforms

Question 9

metaphase II

Answer 9

chromosomes are lined up at middle of the spindle apparatus (metaphase plate, middle of the cell)

Question 10

anaphase II

Answer 10

sister chromatids separate, move to opposite poles of the spindle apparatus

Question 11

telophase II

Answer 11

daughter chromosomes are at opposite poles; spindle apparatus disassembles

cytokinesis follows after where the cell divides and chromosome number is unchanged