Question

1. if an onion cell begins with 8 chromosomes, how many chromosomes will each daughter cell have at the end of mitosis?
2. what is the easiest phase of mitosis to identify?
3. what characteristics help you identify these cells?

chromosomes are lined up down the

Explanation:

Question 6

Step1: Recall mitosis principle

Mitosis is a cell division process that results in two daughter cells with the same number of chromosomes as the parent cell.

Step2: Apply to onion cell

The parent onion cell has 8 chromosomes. After mitosis, each daughter cell inherits the same number of chromosomes as the parent.

The easiest phase of mitosis to identify is often the metaphase. In metaphase, chromosomes align at the cell's equatorial plate (middle), and their condensed, distinct shapes and arrangement make them easily visible under a microscope. The chromosomes are maximally condensed, and their centromeres are lined up along the metaphase plate, providing a clear visual pattern.

If chromosomes are lined up down the middle (equatorial plate) of the cell, this is a key characteristic of metaphase in mitosis. Other characteristics that help identify these cells (in metaphase) include: highly condensed chromosomes (making them visible and distinct), presence of a spindle apparatus with spindle fibers attached to the centromeres of chromosomes, and the cell being in a stage where it is preparing to separate the chromosomes to opposite poles (next phase is anaphase). Also, the nuclear envelope has already broken down (in most eukaryotic cells) by metaphase, and the cell is in a state of preparing for chromosome segregation.

Answer:

8

Question 7