Scoliodon: The Scoliodon commonly known as the Indian Shark or Dogfish. Its body structure supports its cartilaginous nature as a member of the class Chondrichthyes. It is a predatory, fast-swimming lifestyle in the ocean. External characteristics of Sccoliodon: 1. Shape, Size and Coloration Scoliodon has an elongated, spindle-shaped body that tapers at both ends, typically…
Higher Education: The Union Cabinet has approved the Higher Education Commission of India (HECI) Bill, now renamed as the Viksit Bharat Shiksha Adhikshan Bill (VBSAB). This is a structural reset. India’s higher education sector is undergoing significant reforms in 2025, primarily driven by the National Education Policy (NEP) 2020 implementation and new legislative proposals. Key…
Torsion in gastropods: It is a unique developmental process in which the visceral mass, mantle, and shell rotate 180 degrees counterclockwise relative to the head and foot during the larval stage. This causes the mantle cavity and anus to move from a posterior to an anterior position above the head, transforming the originally bilaterally symmetrical…
Ribosomes: Ribosomes consists of two units one small and other large which fit together and work as one to translate mRNA into a polypeptide chain during protein synthesis. In prokaryotic cells ribosomes are synthesized in the cytoplasm and nucleolus in eukaryotic cells. Over 200 proteins are needed to synthesize the four types of RNA. Ribosomes…
Fisheries Development in India: With over 8% of the world’s total fish production, India is the second-largest producer. India’s fishing industry has seen tremendous expansion and change during the last 20 years. India’s position in the world’s fisheries and aquaculture has been strengthened by significant events that have occurred between 2004 and 2024, including regulatory…
Nucleus: Nucleus contains the genome, which is the cell’s genetic database encoded in Deoxyribonucleic Acid (DNA). It is the largest organelle of the cell. Nucleus Structure: The structure of the nucleus (in a eukaryotic cell) includes several key components that together regulate genetic material and cellular function. It includes- 1)Nuclear Envelope 2)Nucleolus 3) Nucleoplasm 4)Chromatin…
Protochordata: The organisms belonging to the Protochordata or acraniates are generally known as the lower chordates. They don’t form a “proper” taxonomic group and are only classified as such for convenience purposes. However, they do form a major group of Chordata. They are also known as Acraniata because they lack a true skull. Characteristics of…
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