Across
- 2. An _______ is found at the same place on the chromosome which is a version of the gene.
- 4. The type of reproduction without gametes is called _______ reproduction.
- 8. The purpose of _______ is to delete cells that have mutation.
- 9. In ________, the chromosomes decondense, and the nuclear envelope material surrounds each set of chromosomes.
- 10. During mitosis, the chromosomes are lined up by the centrosomes along the middle of the cell in ______ .
- 12. If a cell at metaphase, of mitosis, contains 20 sister chromatids, how many chromosomes will be in a G1 cell?
- 13. Metaphase is characterized by alignment of chromosomes on the _______ of the cell.
- 21. The _________ is the region where both sister chromatids are attached to each other.
- 22. Eukaryotic chromosomes are made up of DNA and _______.
- 23. Lack of cell _______ may result in a tumor.
- 24. A type of asexual production that occurs in some single-celled eukaryotes is _______ fission.
- 25. ________ are found only in animal cells and help formation of spindle fibers.
- 26. DNA and protein combine in a complex to form a material called ______ which is tightly wound to form chromosomes.
- 27. During cell division, the chromosomes are separated by ______ fibers.
- 28. The ________ phase is the shortest part of the cell cycle.
- 33. The name of the microtubule-organizing center found in animal cells as an identifiable structure present during all phases of the cell cycle.
- 34. Viewing through a microscope, you can see a cell plate beginning to develop across the middle of the cell. This cell is most likely a _______ .
- 35. In _______, the sister chromatids are pulled apart to become chromosomes in each daughter cell.
- 36. Involves the distribution of identical genetic material to two daughter cells.
Down
- 1. Kinetochores appear on the centromeres during ________, which allow mitotic spindle microtubules on opposite centrosomes to attach to chromosomes.
- 3. During prometaphase, _________ attracts and binds spindle microtubules.
- 5. During meiosis, a cell divides into two and produces four cells, which contains half the number of chromosomes of the parent cells, making them _______ cells.
- 6. Cell_______ is the process in which a parent cell splits into two or more daughter cells.
- 7. Another term for reproductive cells.
- 11. In __________, the nucleus breaks down to allow DNA to condense into chromatids with centromeres to facilitate spindle fiber formation.
- 14. Sperm and egg fuse to form a diploid cell is called a _______.
- 15. _______ accounts for the majority of the cell cycle, and is divided into three phases.
- 16. Cyclin and a cyclin-_______ kinase are the two components of an active MPF.
- 17. Thousands of genes can be stored by DNA tightly packaged into structures called _________.
- 18. A ________ furrow forms during cytokinesis through the pinching of plasma membranes.
- 19. Information for an organism's inherited traits can be found in the animal’s _________ .
- 20. All body cells that are not reproductive cells are _______ cells.
- 26. Mitosis is followed by_______, the division of the cytoplasm.
- 29. The purpose of DNA _______ is to produce two identical copies of DNA.
- 30. A duplicated chromosome consists of two sister _________, which are two copies of the original chromosome.
- 31. A control system that finds defects during DNA replication is _________.
- 32. The life of the cell.