Meiosis: Phases, Stages, Applications with Diagram
Meiosis is a type of cell division in sexually reproducing eukaryotes, resulting in four daughter cells (gametes), each of which has half the number of chromosomes as compared to the … Read more
Cell biology or cytology is a branch of biology that deals with studies related to the structure and function of a cell-based on the concept that the cell is the fundamental unit of life.
Meiosis is a type of cell division in sexually reproducing eukaryotes, resulting in four daughter cells (gametes), each of which has half the number of chromosomes as compared to the … Read more
Anisocytosis is a medical condition where the sizes of different erythrocytes/red blood cells are unequal. Figure: Human red blood cells from the case of anisocytosis. Image Source: Wikipedia (Dr. Graham … Read more
Simple diffusion definition Simple diffusion is a type of passive transport which, as the name suggests, is simply the movement of solute which occurs when its electrochemical potentials on the … Read more
Plant cells are multicellular eukaryotic cells that make up a plant (a group of eukaryotes belonging to the Plantae kingdom, with the ability to synthesis their own food using water, … Read more
The preimplantation period of human embryo development is remarkable and characterized by successive changes in terms of genetic control, physiology, and morphology of the embryo. Blastocyst (Greek,ย blastos= sprout +ย cystosย = cavity) … Read more
Image Source: Pearson Education Process of Gastrulation Each of the three germ layers (ectoderm, mesoderm, and endoderm) gives rise to specific tissues and organs: Factors controlling the process of Gastrulation … Read more
As implantation of the blastocyst occurs, morphologic changes in the embryoblast produce a bilaminar embryonic disc composed of epiblast and hypoblast cells. Epiblast is derived from the inner cell mass … Read more
Within twenty-four hours after fertilization, the zygote initiates a rapid series of mitotic cell divisions called cleavage. These divisions are not accompanied by cell growth, so they subdivide the large … Read more
Mitochondria are central organelles controlling the life and death of the cell. They participate in key metabolic reactions, synthesize most of the ATP and regulate a number of signaling cascades, … Read more
Golgi body or complex is an organelle that is bound by a membrane in eukaryotic cells. Structure of Golgi body a. Cisternae b. Tubules c. Vesicles i. Coated vesicles ii. … Read more