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- A diploid cell has the number of chromosomes as a haploid cell.
- one-fourth
- one-half
- twice
- four times
- An organism’s traits are determined by the specific combination of inherited .
- cells
- genes
- proteins
- chromatids
- Chromosomes are duplicated during what portion of the cell cycle?
- G1 phase
- S phase
- prophase
- prometaphase
- Separation of the sister chromatids is a characteristic of which stage of mitosis?
- prometaphase
- metaphase
- anaphase
- telophase
- The individual chromosomes become visible with a light microscope during which stage of mitosis?
- prophase
- prometaphase
- metaphase
- anaphase
- 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.
- Proto-oncogenes
- 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
- proto-oncogene
- oncogene
- Which eukaryotic cell-cycle event is missing in binary fission?
- cell growth
- DNA duplication
- mitosis
- cytokinesis
- FtsZ proteins direct the formation of a that will eventually form the new cell walls of the daughter cells.
- contractile ring
- cell plate
- cytoskeleton
- septum
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