Cell Division, Cell Cycle, Mitosis Mastering Biology
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.
