Question

4 multiple choice 10 points crossing over occurs during which phase of meiosis? prophase i metaphase i metaphase ii prophase ii 5 multiple choice 10 points a cellular process is shown. which statement best describes the significance of this process? the process creates genetic variation in the resulting cells. the process copies dna before cell division. the process allows organisms to grow and heal. the process produces clones of the parent organism. 6 true or false 10 points the process of meiosis produces four genetically different cells because of crossing over and independent assortment of genes. true false

Explanation:

• Question 4: Crossing - over occurs during Prophase I of meiosis. In Prophase I, homologous chromosomes pair up (synapsis) and exchange genetic material (crossing - over).
• Question 5: The process shown is crossing - over. Crossing - over creates genetic variation in the resulting cells. DNA copying occurs in the S - phase (not related to this process shown). Growth and healing are related to mitosis. Clones are produced by asexual reproduction (not by crossing - over).
• Question 6: Meiosis produces four genetically different cells. Crossing - over (in Prophase I) and independent assortment (in Metaphase I) are the two main mechanisms that contribute to this genetic diversity.

Answer:

• Question 4: Prophase I
• Question 5: The process creates genetic variation in the resulting cells.
• Question 6: True