Development of algal vegetative and reproductive part in multicellular algae by cell division resulting in complex and large structure is known as algal growth. But in case of unicellular algae simple increase in size in the body results in growth of the cell. E.g. Chlamydomonas (unicellular algae). Basically there are …
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Green Algae & The Origin of Higher Plants
The transformation of green, photosynthetic algae from their original simple aquatic life to advanced terrestrial plants was a key event in the history of planet Earth, ranking in significance with the origin of photosynthesis. It is quite obvious from phylogenetic, molecular and morphological studies that higher plants are derived from …
Read More »Algae: An Introduction
Phycology or algology is the study of algae. The word ‘Phycology’ is derived from the Greek word ‘Phykos’ meaning seaweed. The algae are thallophytes (plants lacking roots, stems and leaves) that have chlorophyll as their primary photosynthetic pigment and lack a sterile covering of cells around their reproductive cells or …
Read More »Origin Of Bryophytes
Though almost in all cases, when we talk about the origin, it goes about the discussion of fossils, bryophytes don’t have any primitive form than what at present-day it is. Usually, the study about the origin of bryophytes is something like a hypothesis- based upon the comparative studies about the …
Read More »Takhtajan’s System of Classification
Present-day Armenian-born botanist & systematist Armen Leonovich Takhtajan (1910-2009) was one of the most influential figures of 20th century in the field of plant evolution, systematics, and biogeography. His other interests included morphology of flowering plants, paleobotany, and the flora of the Caucasus (region between the Black sea & the Caspian sea). Good to know …
Read More »Anthoceros: The Hornworts
Systematic position Division: Bryophyta Class: Anthoceropsida Order: Anthocerotales Family: Anthocerotaceae Genus: Anthoceros Habit and Habitat The name ‘Anthoceros’ means ‘flower horn’ and refers to the characteristics horn-shaped saprophyte. Anthocerosis a genus of hornworts in the family Anthocerotaceae. With about 250 species, it is widely distributed in the tropical and temperate regions …
Read More »Transcription: The Mechanism of pre-mRNA Synthesis
Transcription is the synthesis of RNA molecule using one of the DNA strands as a template. It is the first step in the transfer of genetic information from genotype to phenotype. However, this process of transcription is a highly selective one i.e definite genes are transcribed only when their products …
Read More »Regulation of Gene Expression in Prokaryotes: General features and Significance
Every cell of an organism possesses all the structural genes or cistrons. The genes produce proteins and control the activities of the organism. But a genetic system doesn’t allow them to function all at a time in order to avoid enzymatic chaos. Many gene products are only needed occasionally by …
Read More »Sphagnum: A Useful Peat
(AB: This article only contains the use of peat from Sphagnum and it’s uses in gardening. Although some constructive discussions are in here to facilitate it, they are not exhaustive.) If you are fond of gardening or concerned about the dying condition of your trees, this article will be helpful …
Read More »Porella: The Leafy Liverworts
Systematic Position Division : Bryophyta Class : Hepaticopsida Order : Jungermanniales Family : Porallaceae Genus : Porella Habit And Habitat Get Free Netflix Now Best safe and secure cloud storage with password protection GPL Themes For Free Get Envato Elements, Prime Video, Hotstar and Netflix For …
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