A diploid cell has ________ the number of chromosomes as a haploid cell.
- four times
An organism’s traits are determined by the specific combination of inherited ________.
Chromosomes are duplicated during what portion of the cell cycle?
- G1 phase
- S phase
Separation of the sister chromatids is a characteristic of which stage of mitosis?
The individual chromosomes become visible with a light microscope during which stage of mitosis?
What is necessary for a cell to pass the G2 checkpoint?
- cell has reached a sufficient size
- an adequate stockpile of nucleotides
- accurate and complete DNA replication
- proper attachment of mitotic spindle fibers to kinetochores
________ are changes to the nucleotides in a segment of DNA that codes for a protein.
- Tumor suppressor genes
- Gene mutations
- Negative regulators
A gene that codes for a positive cell cycle regulator is called a(n) ________.
- kinase inhibitor
- tumor suppressor gene
Which eukaryotic cell-cycle event is missing in binary fission?
- cell growth
- DNA duplication
FtsZ proteins direct the formation of a ________ that will eventually form the new cell walls of the daughter cells.
- contractile ring
- cell plate