22 CHAPTER 3 



3.3. If the chromosomes serve as the material basis for genes, each cell of the body derived 

 by mitosis should carry the same genotype. Using a multicellular plant, describe 

 how you would test this idea. 



3.4. What are the advantages or disadvantages of chromosome coiling? 



3.5. Can you imagine a spindle which is too small for normal cell division? Explain. 



3.6. Suppose certain nuclei normally do not divide with the aid of a spindle. In what 

 respect would this affect your ideas about genes? 



3.7. Is it scientifically correct to assume at this point that; (1) all genes recombine, 

 (2) chromosomes are equal to genes? Explain. 



3.8. Discuss the statement that all cell divisions are normally mitotic. 



3.9. Differentiate between replication of chromatids and of chromosomal material. 



3.10. List the events that must take place before a given telophase chromosome can give 

 rise to a chromosome made entirely of chromosomal material not yet synthesized. 



