Cell Cycle
Cancer
DNA Replication
Mitosis
DNA Structure
100

What are the five phases of the cell cycle?

G1, S, G2, Mitosis, Cytokinesis

100

What is the definition of cancer?

Uncontrolled cell division

100
What is the first step of DNA replication?
DNA is unwound and split by helicase
100

What happens during prophase?

Chromatin condensed into chromosomes, nuclear membrane dissolves, and cell begins to make spindle fibers

100

What does the base pairing rule state in DNA?

A always binds to T

C always binds to G

200

If a fly has 12 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?

12

200
What does the cell check during G2 phase?
The cell checks to make sure the cell has grown and the genetic material was properly copied
200

What is the second step of DNA replication?

DNA polymerase rebuilds two new strands using the original strands as a template

200

What happens during metaphase?

Spindle fibers attach to the centromeres of chromosomes and line them up along the cell's equator

200

What is the complimentary DNA strand for:

TACGGTACG

ATGCCATGC

300

Mitosis is _________ division - Cytokinesis is __________ division.

Nuclear - Cytoplasmic

300

Name one tissue in the body that appears to be resistant to cancer. 

Skeletal muscle

300

What does complimentary mean?

DNA strands have one side that is old and one side that is new

300

What happens during anaphase?

Spindle fibers separate chromosomes into sister chromatids and pull them to either side of the cell

300

What type of bond holds the nitrogen bases together in DNA?

Hydrogen bonds

400
What is the purpose of G1 (Gap 1)?
The cell grows during gap 1
400

What is a metastasis?

  When a piece of the tumor breaks off and travels to another location in the body. 

400
In what part of the cell does DNA replication occur?
DNA replication occurs in the nucleus
400

What happens during telophase?

The cell pinches in the middle, creating a cleavage furrow. The nuclear membranes begin to appear The chromosomes decondense into chromatin

400

Describe the structure of a DNA molecule.

Double stranded and twisted. Double helix.

500
Why is S phase important for the cell?
Without S phase, daughter cells would only have half of the genetic material that is needed
500

What is the difference between a benign and a malignant tumor?

Benign stays where it began, malignant travels through the body. 

500

During which phase of the cell cycle does DNA replication occur?

DNA in the cell is replicated (copied) during S phase

500

What structure(s) allow for chromosomes to separate and move during mitosis?

Spindle fibers

500

True/False?

DNA regenerates itself right after a cell divides into new cells

FALSE

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