DNA Replication
What enzyme unwinds the DNA double helix at the replication fork?
What is helicase?
The S phase of the cell cycle is responsible for what?
What is synthesis (replication) of DNA.
During which phase do chromosomes line up at the equator?
What is metaphase?
What cytoskeletal component is made of actin and supports the cell membrane?
What are microfilaments?
What are the four main types of animal tissue?
What are epithelial, connective, nervous, and muscle?
The short RNA segment that begins DNA synthesis is called what?
What is an RNA primer?
What is the phase where some cells pause or stop dividing, sometimes permanently?
What is G₀ phase?
What structures shorten to pull sister chromatids apart during anaphase?
What are kinetochore microtubules?
Which cytoskeletal filament provides mechanical strength and resists stress?
What are intermediate filaments?
What transmembrane proteins connect adjacent animal cells to each other?
What are cadherins?
Which strand of DNA is made continuously?
What is the leading strand?
About how long is one complete human cell cycle?
What is about 24 hours?
What event marks the end of mitosis?
What is chromosomes decondense and nuclear envelopes re-form in telophase.
Which cytoskeletal element is made of tubulin dimers and forms the mitotic spindle?
What are microtubules?
Which junction forms a seal that prevents materials from slipping between cells?
What are tight junctions?
What enzyme joins Okazaki fragments together?
What is DNA ligase?
Which type of cell division do prokaryotes use?
What is binary fission?
What is the division of the cytoplasm called?
What is cytokinesis?
What term describes rapid microtubule shortening and regrowth used during cell division?
What is dynamic instability?
Which structure anchors epithelial cells to the basal lamina?
What are hemidesmosomes?
What problem do telomeres and telomerase address in eukaryotes?
What is the end-shortening of linear chromosomes during replication.
What two main steps make up eukaryotic cell division?
What is mitosis and cytokinesis?
In animal cells, what forms the contractile ring that pinches the cell in two?
What are actin filaments/microfilaments?
Name the two motor proteins that move cargo along microtubules.
What are kinesin and dynein?
What junction allows ions and small signaling molecules to pass directly between animal cells?
What are gap junctions?