Cell Division, Cell Cycle, Mitosis Mastering Biology

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Which of the following checkpoints does not occur late in G1?

A check that chromosome replication has been successfully completed

Which of the following statements correctly describes the timing of DNA synthesis?

DNA is synthesized in the S phase of interphase.

The first step of bacterial replication is _____.

DNA replication

True or false. Mitosis takes place during M phase of the cell cycle, which is longer than interphase.

False

What must happen before a cell can begin mitosis?

The chromosomes must be duplicated.

Bacteria divide by:

binary fission

A cleavage furrow forms in an animal cell during _____.

cytokinesis

At the end of the mitotic (M) phase, the cytoplasm divides in a process called _________________.

cytokinesis

In bacterial cells, binary fission involves _____.

distribution of a copy of the single parental chromosome to each daughter cell

Which of the following is a feature of plant cell division that distinguishes it from animal cell division?

formation of a cell plate

Consider the photograph shown below. You can determine this is a plant cell rather than an animal cell because it has _____.

formed a cell plate

During asexual reproduction, yeast cells can produce _____.

genetically identical offspring

Nucleoli are present during _____.

interphase

The chromosomes line up in the center of the cell during which phase of mitosis?

metaphase

Consider the process by which bacterial populations grow. What process performs a similar function in humans?

mitosis

Spindle fibers attach to kinetochores during _____.

prometaphase

Chromosomes become visible during _____.

prophase

The centrosomes move away from each other and the nuclear envelope breaks up during which phase of mitosis?

prophase

Cytokinesis often, but not always, accompanies _____.

telophase

The chromosomes arrive at the poles and nuclear envelopes form during which phase of mitosis?

telophase

DNA replication occurs in _____.

the S phase of interphase

What is different concerning the DNA in bacterial cells as opposed to eukaryotic cells?

the amount of DNA present, whether the DNA is housed in a nucleus or not, and whether the DNA is linear or circular

During prophase a homologous pair of chromosomes consists of _____.

two chromosomes and four chromatids

A certain species of animal has six pairs of chromosomes. How many DNA molecules are present in the nuclei of these animals during G2 phase?

24

Which of the following statements regarding cell division is false?

Cell division is common in eukaryotes but rare in prokaryotes.

Within one chromosome, what is the relationship between the sequence of bases in DNA of one sister chromatid compared to the other?

The sequences are identical

Centromeres divide and sister chromatids become full-fledged chromosomes during _____.

anaphase

The sister chromatids separate and begin moving toward opposite poles of the cell during which phase of mitosis?

anaphase

Strictly speaking, the phrase "like begets like" refers to

asexual reproduction only.


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