72 GENERAL BIOLOGY 



cell. In this way there is a fusion of the protoplasm of the 

 two cells. 



If filaments are found in this condition note any differences 

 in color and size of the filaments and cells, as compared with 

 the ordinary condition. Are all the cells of the filaments 

 undergoing conjugation in the same stages of conjugation? 

 Does the chloroplast take part in the process? 



The result of this conjugation is the formation of a zygo- 

 spore. What is its shape? Color? Size? Are zygospores 

 found in cells of both the conjugating filaments? Is there 

 any indication of sexual distinction in the two filaments? 

 In what condition are the old cells after conjugation is com- 

 plete? 



