What is parthenogenesis? – Parthenogenesis Definition Natural Parthenogenesis The regular, continuous, and natural occurrence of parthenogenesis in the life cycles of certain animals is known as natural parthenogenesis. There are two types of natural pathogenesis: complete and incomplete. (i) Complete parthenogenesis (ii) Incomplete parthenogensis Complete and incomplete type of natural parthenogenesis The two forms of … Read more
Red blood cells constitute the primary cellular component in blood. Red blood cells that are mature are biconcave discs which have no nucleus and are devoid of most cell organelles , including the lysomes, endoplasmic-reticulum and mitochondria.
They are multicellular, eukaryotic cells which comprise the Plant (a collection of eukaryotes that belong to the Plantae kingdom ) capable of producing their own food from sunlight, water and carbon dioxide). Since they are eukaryotic they possess a distinct nucleus, with specially designed organelles that allow them to function in a controlled way.
Growth Definition Levels of Growth There are two distinct stages of growth in living organisms: A. Cell growth B. Growth of multicellular organisms The growth of multicellular animals and plants in connection to the growth and multiplication of their individual cells can be divided into three distinct categories: (1) Auxetic growth (Auxesis = growth resulting … Read more
Genetic code is the set of rules by which the nucleotide sequence present in messenger RNA (mRNA) determines the amino acid sequence during protein synthesis. It is read in groups of three nucleotides, known as codons. Each codon specifies an amino acid or gives a signal for termination of translation. There are 64 codons in … Read more
Learn what the nucleolus is, its structure, components and functions, and how it produces ribosomal subunits through rRNA synthesis and ribosome biogenesis.
Learn what reverse transfection is, its principle, steps and protocol, and how it differs from forward transfection. Includes siRNA, DNA, applications, advantages and limitations.
Apoptosis is a regulated cell death process by which unwanted, aged or damaged cells are removed from the body. It is commonly referred to as programmed cell death. This process is important during normal development and maintenance of tissues. During this process, several changes occur in the cell. The cell shrinks. Chromatin becomes condensed and … Read more
Learn what plasmids are, how they are structured and replicated, their major types and functions, and how plasmids are used in genetics and biotechnology.
Learn the major plasma membrane models, from Overton and Gorter-Grendel to the Davson-Danielli, Robertson and Singer-Nicolson fluid mosaic models, with diagrams and comparison.
