Polysiphonia Polysiphonia- Systematic Position Division: Rhodophyta Class: Rhodophyceae Order: Ceramiales Family: Ceramiaceae Distribution of Polysiphonia Ø Polysiphonia is marine red algae belongs to the class Rhodophyceae. Ø They are abundantly present in the Atlantic Coasts of America. Ø Polysiphonia platycarpa is present in the Indian coastal regions. Ø Polysiphonia violacea is […]
Continue ReadingCategory Archives: Lecture Notes
Introduction to Genetics: Glossary of Genetics Terminologies (Short Notes with PPT)
Genetics Terminologies What is genetics? Ø Genetics: Genetics is the study of Heredity and Variation of Inherited Characters. Ø Heredity: The tendency offspring to resemble their parents is called heredity. Ø Variation: The tendency of offspring to vary from their parents is called variation. Ø The term ‘Genetics’ was coined […]
Continue Reading
Mendelian Genetics: Monohybrid Inheritance (Example: Plant Height in Pisum sativum)
Monohybrid Cross Monohybrid cross is a type of hybridization experiment which involves the study of the inheritance of one pair of contrasting character. The alleles of contrasting characters selected in the monohybrid cross will show exact Dominance and Recessive relationships. In Mendel’s classical experiment, he studied seven pairs of contrasting […]
Continue Reading
Hydrosere (Hydrarch Succession) with PPT
What is Hydrosere or Hydrarch Succession? A succession originates in a water body (aquatic environment) is called Hydrosere or Hydrarch Succession. Such a succession does not necessarily lead to the development of a land community. If the water body is sufficiently large and with wave action, the succession usually results […]
Continue Reading
Types of Ecological Succession
In the previous post, we have discussed the Process of Ecological Succession. Here we will discuss the classification of different types of ecological successions. The ecological succession is classified into different types based on different criterions such as the origin of succession, cause, community composition and nature of substratum. An […]
Continue Reading