Across
- 3. A partition formed during cell division in plants and some algae that separates the two newly formed daughter cells.
- 4. The exchange of genetic material between homologous chromosomes that results in recombinant chromosomes during sexual reproduction.
- 5. Any of a number of proteins associated with the cycle of cell division that are thought to initiate certain processes of mitosis.
- 6. Each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
- 9. A minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
- 10. Two chromosomes, one of paternal origin, the other of maternal origin, that are identical in appearance and pair during meiosis.
- 11. A point at which paired chromosomes remain in contact (in the shape of an X) during the first metaphase of meiosis, and at which crossing over and exchange of genetic material occur between the strands.
Down
- 1. The region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division.
- 2. A malignant growth or tumor resulting from the division of abnormal cells.
- 3. The indentation of the cell's surface that begins the progression of cleavage, by which animal and some algal cells undergo cytokinesis.
- 5. The cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
- 7. The series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells.
- 8. The material of which the chromosomes of organisms other than bacteria are composed. It consists of protein, RNA, and DNA.