Cell Structure and Function

In the five phases of prophase 1, initially, the nuclear membrane has disappeared, the chromosomes have become chromosomes; a structure from the network-like structure attains a thin thread-like structure. Now, this phase is known as metaphase 1. A cell is performing different activities during this stage. In metaphase I, a similar type of activity will […]

Every organism is made up of cells. The process makes new cells of cell division both in prokaryotes and eukaryotes. However, the process of cell division greatly varies between the two. The process of cell division in eukaryotes is generally called the cell cycle. The cell cycle has three main components: a replication of DNA,

The process of development of megaspores from megaspore mother cells is known as megasporogenesis. The megaspores are developed in the female reproductive organs. Archesporial cells  Archesporial cells divide into several parietal cells, and one (or sometimes two) sporogenous cells grow in size and become the megaspore mother cell, resulting in the formation of thousands of

WHAT IS CELL CYCLE? In layman’s terms, the cell cycle is a series of events that occur intravenously in a cell, culminating in the generation of two daughter cells via DNA duplication and cytokinesis, as well as the division of cell organelles.  The Cell Cycle’s Phases The cell division cycle, often known as the cell

Differentiation, Dedifferentiation, and Redifferentiation are all terminology used to describe differentiation, dedifferentiation, and redifferentiation processes. The three processes of cellular growth that bring cells to maturity are cell division, cell expansion, and cell differentiation. De-differentiation is a phenomenon that occurs when living differentiated cells that have lost their ability to divide regain it under certain

Introduction:  All the organisms on this earth begin from a single cell. These single cells carry the DNA (Deoxyribonucleic acid) coding for all the proteins the adult organisms will use. However, if these single cells expressed all of these proteins at once, they would not be functional. So this cell must divide repeatedly and the

Zygotene is the second stage of meiosis prophase-1, and it is the stage where the egg develops.  It is preceded by the leptotene stage, which is characterised by the uncoiling and condensing of chromosomes and the formation of DNA.  Synapsis is the term used to describe how homologous chromosomes (one from the mother and one

Introduction Dedifferentiation alludes to a cell interaction wherein a separated cell loses its unique structure or capacity or returns to a prior formative stage. Cell separation is a cycle where the cell procures adjustments in structure and capacity. Subsequently, the cell turns into one more cell type that is accomplished in doing a specific rather

The building block of life is the cell. In most eukaryotes or multicellular organisms, these cells divide to form more, ultimately resulting in the organism’s growth. For example, a tree grows in size, day by day, through a continuous process of somatic cell division. There are kinds of cell divisions – mitosis and meiosis. In

Cleavage is the division of cells that occurs early in embryonic development after fertilisation. A large number of species’ zygotes go through a rapid number of cell cycles with little overall growth, resulting in a cluster of cells that is the same size as the original zygote.  The blastomeres, which are the individual cells formed