1. when during the cell cycle is a cell's dna replicated? a. g1 phase b. g2 phase c. s phase d. m phase 2. which of the following represents the phases of mitosis in their proper sequence? a. prophase, metaphase, anaphase, telophase b. interphase, prophase, metaphase, anaphase, telophase c. interphase, prophase, metaphase, telophase d. prophase, anaphase, metaphase, telophase 3. what is the role of the spindle fibers during mitosis? a. they separate the chromosomes b. they break down the nuclear membrane c. they duplicate the dna d. they make the chromosomes visible 4. one difference between cell division in plant cells and in animal cells is that plant cells have a. centrioles b. centrometers c. a cell plate d. chromatin

The answers are:

1- C) S phase

2-A) Prophase, Metaphase, Anaphase, and Telophase.

3-A) A. They help separate the chromosomes.

4)C) A cell plate

Explanation:

1-during the S phase (Synthesis phase) of Interphase. Interphase is basically the daily life cycle of the cell. Cells spend most of their life in Interphase before Mitosis occurs

2-Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. These phases occur in strict sequential order

3 Spindle Fibers equally divide the chromosomes in a parental cell into two daughter cells

4-The cells of land plants, unlike animal cells, have a cell wall made of stiff sugars which surround their cell membranes.

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as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.