Question

because of when the chromosomes pair up during meiosis, crossing over must occur during

metaphase ii
prophase ii
metaphase i
prophase i

meiosis begins with 1 cell, and ends up with _____ cells

2 diploid
4 haploid
2 haploid
4 diploid

Explanation:

Analyze crossing over timing

Crossing over is the exchange of genetic material between homologous chromosomes. Homologous chromosomes pair up to form tetrads during Prophase I of meiosis. Because this pairing occurs in Prophase I, crossing over must also take place during this specific phase.

Determine meiosis cell outcomes

Meiosis consists of two successive nuclear divisions: meiosis I and meiosis II. A single diploid parent cell undergoes DNA replication followed by these two rounds of division, resulting in four genetically distinct haploid daughter cells.

Answer:

Question 1

• Metaphase II
• Prophase II
• Metaphase I
• Prophase I (Correct answer)

Question 2

• 2 diploid
• 4 haploid (Correct answer)
• 2 haploid
• 4 diploid