The Process of Cell Division

Fill-in-the-blank practice flashcards covering chromosomes, prokaryotic binary fission, the eukaryotic cell cycle, and the stages of mitosis and cytokinesis.

In prokaryotic cells, DNA is packaged into a single, __________ chromosome.

circular

In eukaryotic chromosomes, DNA double helices wrap tightly around bead-like proteins called __________ to form nucleosomes.

histone proteins

Each duplicated eukaryotic chromosome consists of two sister chromatids joined at a central region called the __________.

centromere

During eukaryotic chromosome packaging, coils interact and twist together into even tighter structures known as __________.

supercoils

The method of asexual cell division depicted here, in which a prokaryotic cell duplicates its DNA and divides, is called __________.

binary fission

During prokaryotic binary fission, after DNA duplicates, the cell membrane __________ before the cell completely divides into two new cells.

indents

In the eukaryotic cell cycle, the non-dividing growth phase consisting of $G_1$, S, and $G_2$ is called __________.

interphase

During the $G_1$ phase of the eukaryotic cell cycle, the main activity taking place is __________.

cell growth

During interphase, new DNA is synthesized during the __________ phase.

S

Following the S phase, the cell enters the $G_2$ phase, which is dedicated to __________ for mitosis.

preparation

In eukaryotic cells, cell division occurs during the M phase, which is comprised of __________ and cytokinesis.

mitosis

During __________, the nucleus condenses, chromosomes become visible, and the spindle begins to form.

prophase

During __________, duplicated chromosomes line up across the center of the cell.

metaphase

During anaphase, sister chromatids separate into individual chromosomes and move toward opposite __________ of the cell.

poles

During telophase, the cell begins to divide into daughter cells and the __________ re-form.

nuclear envelopes

During cytokinesis in animal cells, the cell membrane pinches in the __________ to form two daughter cells.

center

As illustrated in the mitosis overview diagram, the four successive phases of mitosis are prophase, metaphase, anaphase, and __________.

telophase