The cell cycle, or cell-division cycle, is the series of events that take place in a cell leading to its division and duplication. In cells without a nucleus.
Quiz for Cell Cycle
1. What is the name of the attachment point between sister chromatids in a chromosome?
2. What is the name of the microtubule fibers that pull the sister chromatids apart?
3. The pinching off of the cell membrane that creates two new cells (after mitosis) is called
4. Why is it important that the chromosomes are doubled ("copied") before mitosis?
5. When and where does mitosis happen in a complex multicellular organism like a human?
6. Which phase of mitosis is shown in the picture?
7. Which phase of mitosis is shown in the picture?
8. Which phase of mitosis is shown in the picture?
9. Which phase of mitosis is shown in the picture?
10. What is the name of the structures responsible for generating the spindle fibers?
C. the funky hot chocolates
Mitosis is the process by which a cell, which has previously replicated each of its chromosomes, separates the chromosomes in its cell nucleus into two identical sets of chromosomes, each set in its own new nucleus.
Quiz for Mitosis
1. During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
2. The two main stages of the cell cycle are called
A. mitosis and interphase
B. telophase and cytokinesis
C. interphase and anaphase
D. cytokinesis and mitosis
3. The first phase of mitosis is called
4. Sea stars are genetically different from each other and from their parents. These genetic differences are the result of
C. sexual reproduction
D. asexual reproduction
5. A protein called p53 can keep cells from dividing. To prevent cell division, this protein most likely stops
6. When the DNA in a cell is uncoiled and spread throughout the nucleus it is called
7. DNA in a cell is copied during
A. G1 phase
B. G2 phase
D. S phase
8. The spindle fibers are produced by the
9. Cleavage furrows form in which type of cells?
B. bacteria and plants
D. all of the above
10. Cells spend most of their time in what phase?
Meiosis is a special type of cell division necessary for sexual reproduction in eukaryotes, such as animals, plants and fungi. The number of sets of chromosomes in the cell undergoing meiosis is reduced to half the original number, typically from two sets to one set.
Quiz for Meiosis
Use with the proprofs.com link for the diagrams.
1. Name this phase.
2. What are the pairs of chromosomes known as?
3. Is this cell diploid or haploid?
4. The process of the chromosomes overlapping and switching genetic information is known as?
5. Name this phase.
6. What is the structure labeled "a"?
7. Is this cell diploid or haploid?
8. Name this phase.
9. What is the structure labeled "b"?
10. Is structure "b" appearing or disappearing?