True or false, Cytokinesis divides a cell’s nucleus into two genetically identical nuclei.
False
100
Mitosis and Cytokinesis produce two genetically identical ________ _________.
Daughter cells
100
What divides DNA in two nuclei?
Mitosis
100
How do prophase and telophase differ?
Prophase= chromosomes coil up
Telophase= chromosomes uncoil
100
Pairs of identical chromosomes are attached to each other at an area is called?
centromere
200
Anaphase is the second phase
False, the third one
200
DNA is a double stranded molecule made of 4 subunits called _________.
Nucleotides
200
What divides the cytoplasm into two cells and completes a full stage of the cell cycle?
Cytokinesis
200
Explain what happens in mitosis
Mitosis divides a cell's nucleus into 2 genetically identical nuclei, each one with full set of DNA
200
In mitosis cells will generally divide when?
when they're too large
300
The last phase in mitosis is prophase
False, is telophase
300
By the end of interphase, an individual cell has two full sets of ___________.
DNA/ chromosomes
300
DNA
During mitosis, the _____ is loosely organized like a thread.
300
Explain how cytokinesis differs in animal and plants cells.
Animal cells: the membrane forms a furrow/trench, that is pulled inward by tiny filaments.
Plant cells: the membrane cannot pinch inward because of the cell wall.
300
How many meters of DNA are in each cell?
3 meters/10 feet
400
In anaphase DNA travel to opposite ends of cell
False, centrioles/centrosomes travel to opposite ends of cell
400
During mitosis, the DNA is tightly coiled into chromosome to _________.
keep the DNA organized
400
How many phases are found in Mitosis? And name them.
4; prophase, metaphase, anaphase, telophase.
400
Explain Interphase in mitosis
In interphase the cell copies its DNA and grows in preparation for division.
The DNA is loosely organized during this phase.
400
Body cells are called?
Somatic
500
In prophase spindle fibers grow from nuclei?
False, from centrioles
500
Multicellular organisms use cell division for _______, ______, and _________.
Growth, levelopment, and repair.
500
Name the 3 steps of DNA organization:
1.Loose DNA
2.Chromatin
3.Chromosomes
500
Mitosis occurs in all body cells except?
eggs and sperm
500
How many chromosomes do we have in our body cells?