What are the structure of Chromosomes, Types and its Functions?

Chromosomes

According to Cohn (1964), the term chromatin refers to the Feulgen positive materials observed in the interphase nucleus and later during the division of the cell nucleus. they are long, fine thread-like structures 40 to 150 A0 in diameter.  Ris (1969) has observed that chromatin fibers contain only a single DNA molecule. The term …

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What are Interrupted Genes?

Interrupted Genes

Most eukaryotic genes are interrupted by non-coding or non-translatable sequences known as introns. The coding or translatable sequences are known as exons. Such genes are called split genes / interrupted genes. Both intron and exon sequences are transcribed to produce a primary transcript / precursor RNA / pre RNA. What …

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What is Operon? Role in Protein Synthesis

What is Operon? Role in Protein Synthesis

In genetics, an operon is a functioning unit of genomic DNA containing a cluster of genes under the control of a single regulatory signal or promoter. The genes are transcribed together into an mRNA strand and either translated together in the cytoplasm or undergo trans-splicing to create monocistronic mRNAs that …

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What is the definition and Function of Cytoskeleton?

cytoskeleton structure and function

The cytoskeleton (likewise CSK) is a cellular “ scaffolding” or “ skeletal system” included within a cell’s cytoplasm and also is constructed of healthy protein. The cytoskeleton exists in all cells; it was when believed to be special to eukaryotes, yet the current research study has actually recognized the prokaryotic …

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Golgi Complex: The Cellular Transporting System to Carry Secretions

Golgi complex

In 1898, Camillo Golgi, an Italian cytologist, discovered that when he treated the cells with silver salts, certain peculiar bodies showed up in the cytoplasm. The Camillo Golgi discovered, in 1898, by a Silver-impregnation method, a reticular structure in the nerve cells of the barn owl, which he called the ‘apparato reticular …

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