The Cell Cycle

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Biology

The region labeled A in Figure 9-1 is called the

centromere

The structures labeled B IN fIGURE 9-1 ARE CALLED

sister chromatids

During which phase(s) of mitosis are structures like the one shown in Figure 9-1 visible?

prophase and metaphase

Which event occurs during interphase?

The cell carries out metabolic processes?

Which of the following is a correct statement about the events of the cell cycle?

Interphase consists of G1, S, and, G2 phases

During which phase of mitosis do the chromosomres line up along the middle of the dividing cell?

telophase

One difference between cytokinesis in plant cells and in animal cells is that plant cells have

a cell plate

What is a malignant tumor?

a mass of center cells

Which of the following is NOT a correct statement about the events of the cell cycle?

The cell grows during the G2 phase

When during the cell cycle is a cell's DNA replicated?

S phase

Which of the following is a phase in the cell cycle?

all of the above

The stage of cell division in which a cell divides into two daughter cells is called

mitotic phase

The cell cycle

series of events that cells go through from "birth" to reproduction

The two main stages of the mitotic phase are called

cytokinesis and mitosis

Which of the following is a phase of mitosis

prophase

The first phase of mitosis is called

prophase

Cancer is a disease in which some cells lose the ability to control their

rate of division

Unlike mitosis, meiosis usually results in the formation of

four genetically different cells

During metaphase, each chromosome is connected to a(an)_________.

spindle fiber

During _________, the nucleus and the duplicated chromosomes divide and are evenly distributed, formiing two "daughter" nuclei

mitosis

The processs shown in Figure 9-3 is called the_____.

cell plate

The process shown in Figure 9-3 occurs only in ____ cells that have divided.

plant

Look at Figure 9-3. The process shown occurs directly during mitosis. This process is called

cytokinesis

A cell that has 5 chromosomes in the G1 phase will have ____ chromatids in the G2 phase.

10

Together, the G1 phase, S phase, and G2 phase are called ______.

Interphase

In the disease ____, the mechanisms that normally control the cell cycle

cancer

How does cell reproduction cintribute to repair and growth?

When you are injured, your body produces cells that heal the wound. All of the growth of your body is also a result of new cells produced by cell reproduction.

How are homologous chromosomes alike? How are they different?

Homologous chromosomes are similar in size and shape. Each one contains the same sequence of genes controlling the same inherited characteristics. However, the two genes may be slightly different versions.

How many sets of chromosomes are in the diploid cell?

Two(2) sets of chromosomes.

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