Define interphase and describe its three stages
What will be an ideal response?
Before cells can divide, they must grow to the size of the parental cell. Growth takes place during the first stage of interphase, the G1 stage. G1 begins immediately after division; during this stage, many cytoplasmic components, including organelles, membranes, and ribosomes, are made. G1 is followed by the S (synthesis) phase, during which a copy of each chromosome is made. A period known as G2 takes place before the cell is ready to begin a new round of division.
You might also like to view...
The Ames test may be used to determine if an agent is a mutagen
Indicate whether the statement is true or false
Conservation biologists conduct population viability analyses to determine ____
a. whether an environment is too badly degraded to support a species b. how large a population must be to ensure its long-term survival c. likely source populations d. likely sink populations e. the annual reproduction rate of a population
Next-generation sequencing methods are revolutionizing biology research and human medicine because they
A) can generate large amounts of sequence data on many samples in parallel. B) are reducing the cost of sequencing. C) are increasing the length and reliability of each sequence read. D) can generate sequence data from very small amounts of DNA. E) can generate large amounts of sequence data on many samples in parallel, generate sequence data from very small amounts of DNA, and are reducing the cost of sequencing.
Most reabsorption takes place in what part of the tubule system in the kidney?
A) Proximal tubule B) Nephron loop C) Glomerular capsule D) Distal tubule E) Collecting duct