Chromosomes
Chromosomes are made of ________ and proteins (histones).
What is DNA?
The phase of the cell cycle where the cell divides.
Mitosis
The cell cycle includes interphase and __________/meiosis.
What is mitosis?
If there are 23 pairs of chromosomes in the original cell, after mitosis how many chromosomes will be in each of the new daughter cells?
What is 23 pairs?
What is cancer?
a) when chromosomes line up in the middle of the cell
b) the uncontrolled growth and division of cells
c) when 1 cell divides into 2 cells
b) the uncontrolled growth and division of cells
What is uncoiled (string) DNA called?
Chromatin
The FIRST phase of the cell cycle, where the cell is growing!
G1 Phase
What is interphase?
During metaphase, when chromosomes are built and are lined up in the middle of the cell, _______________ holds these sister chromatids together.
CHOOSE 1:
- Chromatin
- Chromatids
- Centromeres
What are centromeres?
Which checkpoint checks to make sure that the DNA was replicated correctly and the cell is ready to divide?
G2
What is the cell organelle that contains the chromosomes?
What is the nucleus?
The phase of the cell cycle where the DNA is replicated.
S-phase
______________ (Prokaryotic or Eukaryotic) cells undergo a process called Binary Fission to divide.
What is prokaryotic?
The first phase of mitosis, where chromatin condenses into chromosomes.
What is prophase?
Cancer cells spend less time in what phase of the cell cycle?
Interphase
How many pairs of autosomes do humans typically have?
What is 22 pairs?
The phase of the cell cycle before Mitosis, where the cell makes sure that it is ready to divide.
G2 Phase
___________________ (Prokaryotic or Eukaryotic) cells undergo mitosis or meiosis to divide somatic cells and gametes.
What is eukaryotic?
The third phase of mitosis, where chromosomes are pulled apart by spindle fibers to the opposite ends of the cell.
What is anaphase?
What is called when a doctor takes a sample of a tumor to test it to see if it's cancerous?
Biopsy
Fill in the blank: Chromosomes are made up of 2 sister ________________ linked together by the centromere.
What are chromatids?
The BIG phase that includes G1, S, and G2.
Interphase!
What 2 things occur in interphase to prepare the cell for going into mitosis?
1. What is cell growth?
2. What is DNA replication?
The final phase of mitosis, where the chromosomes uncoil into chromatin and the nucleus forms around the DNA.
What is telophase?
What is it called when a piece of a tumor has broken off and traveled somewhere else in the body?
Metastisized