In the 1870s, the observation that the nuclei of male and female reproductive cells undergo fusion in the process of fertilization leads to the decision that the cell nucleus plays a key role in inheritance. After that, when the cell is stained with the help of some when certain dyes …

Algae refers to a heteromorphic group of organisms which are capable of doing photosynthesis as they contain chlorophyll as their primary pigment and lack a sterile covering around their reproductive cells. The members are grouped together as they share some common characteristics. However, they are not necessarily closely related in …