Zebrafish Development The teleost fish Danio rerio is commonly known as the zebrafish. It is a common small‐bodied tropical, freshwater species originally from South Asia. The fish is a part of the Cyprinidae family, which includes carps, true minnows, barbs and related genera. The Danio genus (formerly Brachydanio) contains more than 40 related species along with the zebrafish (Danio … Read more Zebrafish Development
Implantation- Process, Events, Significance The term “implantation” is used to describe the process of attachment and invasion of the uterus endometrium by the blastocyst (conceptus) in placental animals. It begins at the end of the first week and is completed by the end of the second week of gestation. Implantation occurs in the endometrium of … Read more Implantation- Process, Events, Significance
Structure of Human Cytomegalovirus Figure: Structure of Human Cytomegalo Virus, Source: Dr. Marko Reschke, Marburg, Germany Cytomegalovirus is a member of the herpes virus family that falls under the beta herpes subfamily. CMV is spherical in shape with icosahedral symmetry. The icosahedral protein capsid with an average diameter of 100 nm consists of 162 hollow … Read more Human Cytomegalovirus
Disease Control Control of communicable diseases, which implies reducing their occurrence, has always been a major public health priority. In the past, control measures were based on incomplete knowledge of the epidemiology of the disease to be controlled and were directed at perceived factors of disease causation. As knowledge of the epidemiology of diseases improved, … Read more Disease Control
Measles Virus Image Source: BBC Structure Measles virus is the prototypic member of the Morbillivirus genus of the family Paramyxoviridae. Measles virus is spherical with a diameter ranging from 120 to 1000 nm and has two major structural components: one is the helical ribonucleoprotein (RNP) core formed by the association of the nucleoprotein (N), phosphoprotein … Read more Measles Virus
Heart Embryology- Development of the Heart The heart is a muscular organ located in the middle mediastinum that pumps blood through the circulatory system. It is one of the earliest differentiating and functioning organs in the human body. In human embryos, the heart begins to beat at about 22-23 days, with blood flow beginning in the 4th … Read more Heart Embryology- Development of the Heart
What is Developmental Biology? It is the field of biology that studies the processes by which multicellular organisms grow and develop, controlled by their genes. It involves the study of mechanisms of development, differentiation, and growth in animals and plants at the molecular, cellular, genetic and evolutionary levels. It also encompasses the biology of regeneration, asexual reproduction, metamorphosis, and the growth and differentiation … Read more Developmental Biology
Stem cells refer to such cells that can differentiate into other types of cells and can also divide in self-renewal to produce more of the same type of same cells. The earliest stem cells in the human body are those found in the human embryo. The stem cells inside an embryo will eventually give rise … Read more Stem Cells- Sources, Characteristics, Types, Uses
Stages of Childbirth Labor is a physiologic process during which the fetus, its associated membranes, the umbilical cord, and the placenta are expelled from the uterus. During most of the months of pregnancy, the uterus undergoes periodic episodes of weak and slow rhythmical contractions called Braxton Hicks contractions. Contractions become progressively stronger toward the end … Read more Stages of Childbirth
Drosophila Development- Stages, Significance The fruit fly Drosophila melanogaster has been extensively studied for over a century as a model organism for genetic investigations. It also has many characteristics that make it an ideal organism for the study of animal development and behavior, neurobiology, and human genetic diseases and conditions. Image Source: biology.kenyon.edu Developmental Stages of Drosophila The … Read more Drosophila Development- Stages, Significance
