Flashcards in Exam #4 - Cell Division Deck (108)
Where do cells come from?
Do all cells divide?
What are examples of cells that do NOT divide?
Not all cells divide, but those produced by cell division divide.
What are three reasons why cells divide?
Bacteria only have ___ chromosome and it's _______.
circular - meaning it has to ends
Bacteria have one circular chromosome and it's copied by ____ _________.
Bacterial cells divide by _______ _______.
How many chromosomes do we have?
How are eukaryotic cells more complicated?
1) Membrane bound organelles
2) multiple chromosomes
The ________ and ________ make their own DNA.
mitochondria and chloroplast
What about the E.R and Golgi? What will happen to them during cell division?
They will disassemble and disintegrate into many smaller component parts. The cell divides, and then those parts reassemble and make new E.R and Golgi
What are the two types of cell division in eukaryotes?
Mitosis and meiosis
________ daughter cells.
The daughter cells have _____ the number of chromosomes as the parental cell.
The number of cells in the parental cell will always be a _____ number.
If you have 10 chromosomes, then meiosis gives you daughter cells, each of which have _ chromosomes.
What is the purpose of mitosis? (3)
What is the purpose of meiosis?
Mitosis occurs in body cells, also called _______ cells.
Mitosis is a tightly regulated series of events, unique to eukaryotes. Therefore, this process is controlled by many _______.
______ is the result when cell division goes out of control.
Cell division during the __ phase.
The portion of the cycle in-between cell division is called _________.
Interphase accounts for __% of the cell cycle.
What are the 3 sub phases of interphase?
S phase, G1 and G2
What occurs during S phase?
1) chromosome duplication
2) DNA synthesis
What occurs during G1 and G2?
2) prep for next stage
Gap 1 Is a gap between ____ ______ and ___ ________.
cell division and DNA replication
Gap 2 is between ____ _________ and ____ _________.
DNA replication and cell division
What does the S stand for in the S phase?
Synthesis, DNA Synthesis