Chromo what?
A long continuous dense strand of DNA is
The correct order for the stages of mitosis are
Prophase, metaphase, anaphase, telophase
What stage of the cell cycle are most cells in?
Interphase
What is identical between your skin cells and heart cells ?
Their DNA
How many PAIRS of chromosomes does the average human have?
23
This is the location in the middle of a chromosome
Centromere
During this stage of mitosis the chromosomes are lined up near the middle of the dividing cell
Metaphase
What is the cytoskeleton used for in cell division?
Moving the chromosomes around the dividing cell.
What do spindle fibers connect during mitosis?
Centromeres to centrioles
What do single celled organisms and things like bacteria use binary fission for?
Reproduction
This is loosely stored DNA before prophase
Chromatin
During prophase what is occurring in the cell
The DNA is condensing into chromosomes
During this stage the cytoplasm is divided into two separate cells
Cytokinesis
The process by which stem cells develop into specialized cells is
Cell differentiation
If I see 30 chromatids lined up during metaphase. How many chromosomes am I dealing with?
15
How many strands of "unique DNA" do sister chromatids have?
1
What is a key step during telophase?
Two nuclear membranes begin to reform
Name the 5 stages of the cell cycle
Gap1, Synthesis, Gap 2, Mitosis, Cytokinesis
How do carcinogens impact cells?
They damage DNA causing types of cancer
If a sister chromatid fails to separate during anaphase, what will happen to the daughter cells that are produced during cytokinesis?
One of the daughter cells will have an extra chromosome while the other will be missing a chromosome.
What are histone proteins used for in chromosomes?
DNA wraps around histones to help compact it into a chromosome
In terms of chromosomes, after mitosis is complete the daughter cells have. . .
Have an exact copy of the parents chromosomes.
How might a carcinogen impact M phase of the cell cycle?
Cause the chromosomes to separate incorrectly or unevenly
Plasmodial slime mold is an example of a multi-nucleated cell, what part of the cell cycle does not happen?
Cytokinesis
Karyotype: 47XX chromosome 13 impacted
female with 3 copies of chromosome 13
Patau syndrome