Question

need help please

the appara. forms to "pinch" the 7. During the final stage of the animal cell cycle a two daughter cells apart thus ending cytokinesis. During plant cell division this is replaced by formation. Eventually becomes the new cell wall. 8. In the adult body of mammals many of the body cells continuously divide but some like cells stop dividing. and some_ , structures at the end of chromosomes that shorten after each 9. division. (these figure in discussion of how cancer cells can continuously divide). They are compared to the plastic tips of shoe laces is a process that programs the cell to breakdown and deteriorate 10. due to various reasons from being "old and worn out" , damaged, and sometime malformed. This (changes in the 11. Cancer is best defined as the process whereby cell divide division is usually the result of an accumulation of genetic makeup in a cell)

Answer 1

7. During the final stage of the animal cell cycle, a cleavage furrow forms to pinch the two daughter cells apart thus ending cytokinesis. During plant cell division, this is replaced by cell plate formation.

8. In the adult body of mammals, many of the body cells continuously divide but some like neurons, cardiac muscle cells and some fat cells stop dividing.

9. Telomeres, structures at the end of chromosomes that shorten after each division. They are compared to the plastic tips of shoe laces.

10. Apoptosis is a process that programs the cell to breakdown and deteriorates due to various reasons from being old and worn out, damaged, and sometime malformed.

11. Cancer is best defined as the process whereby cells divide uncontrollably. This division is usually the result of an accumulation of mutations or aberrations (changes in the genetic makeup in a cell).

12.                                                                                 

      A. Tumor abnormal cell mass

      B. Carcinoma cancer of epithelial tissues

      C. Benign tumor describes non-cancerous tumors or moles

      D. Malignancy describes cancerous growths or moles

      E. Leukemia cancer of the blood

      F. Sarcoma cancer of the connective tissues and bones

     G. Metastasis describes a cancer that has spread

13. Characteristics of cancer:

• Loss of basal polarity
• Pleomorphism
• Anisonucleosis
• Nuclear hyperchromatism
• Abnormal mitotic figures
• Tumor giant cells
• High N/C ratio
• DNA aneuploidy