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Meiosis
Meiosis I
Meiosis II
Meiosis I
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Interphase I
Prophase I
Metaphase I
Anaphase I
Telophase I
Meiosis II
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Interphase II
Prophase II
Metaphase II
Anaphase II
Telophase II
Mitosis
Meiosis
Meiosis I
Meiosis II
Diploid Cell 2N = 4
Two Homologous Chromosomes
Interphase 1
DNA is synthesized during the S phase
Prophase I: (1)The duplicated chromosomes
condense and become visible.
(2) Spindle forms.
(3) The nucleolus disperses
(4) The nuclear membrane disperses
(5) Homologous chromosomes pair
(6) and cross over
Metaphase I
Paired homologous chromosomes align
at the metaphase plate
Anaphase I
The homologues separate from each other, but sister
chromatids remain linked at their centromeres
Telophase I: Cytokinesis that follows produces 2
daughter cells, each has 2 chromosomes consisting
of 2 sister chromatids
Prophase II
Metaphase II
Anaphse II
Telophase II
Identify the following phase
Identify the following phase
Identify the following phase
Identify the following phase
Question 1
Homologous chromosomes
A. Pair up during meiosis
B. Are in pairs, one chromosome of each pair
comes from the father and one from the
mother
C. May exchange parts during meiosis
D. All the above
Questions 2 & 3 True/False
• Question 2: Asexual reproduction produces
variations
• Question 3: Sexual reproduction produces
variations
Answers
• Question 1: D
• Question 2: F
• Question 3: T