105 results found

Search Results for: stem cell

Why Embryonic Stem Cell Use is Unethical

By Vicki Mozo Embryonic Stem Cell research offers a remarkable way to treat various disorders where conventional... Read More

A twist of fate — Reprogrammed fibroblasts resemble embryonic stem cells

Stem cell biology takes another exciting leap forward as scientists report that normal tissue cells can be reprogrammed to... Read More

Stem cell

Definition noun, plural: stem cells (1) An unspecialized cell characterized by the ability to self-renew by mitosis while... Read More

Cell

A cell is a membrane-bound structure that occurs as a functional independent unit of life (such as in unicellular organisms,... Read More

Plant cell

Plant Cell Definition A plant cell refers to any cell of a plant. It is the structural and functional unit of plants. Plant... Read More

Animal cell

An animal cell is the fundamental functional unit of life of animals. It is also the basic unit of reproduction. Animal... Read More

Diploid

Diploid Definition Let's first understand the meaning of the word - diploid. From the words ‘di’, meaning "two", and... Read More

Mitosis

Mitosis Definition What is mitosis? In biology, mitosis refers to the cellular process where a single cell divides... Read More

First time! Human blood cell turned into a young sex cell

In essence, our body consists of two major types of cells – one group involved directly in reproducing sexually (called... Read More

Genetic Information and Protein Synthesis

Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Living things

Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More

Hypotonic solution

Hypotonic Solution Definition What is a hypotonic solution? It refers to a solution that contains a lower amount of solute... Read More

Parthenogenesis

To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More

Eukaryote

Eukaryote refers to any of the single-celled or multicellular organisms whose cell contains a distinct, membrane-bound... Read More

Pseudopodia

A pseudopodium (plural: pseudopodia) refers to the temporary projection of the cytoplasm of a eukaryotic cell. Pseudopodia... Read More

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

Red blood cell

Definition noun, plural: red blood cells The blood cell containing hemoglobin and functions primarily to transport... Read More

Gap 0 phase

Definition noun The phase in the cell cycle wherein the cell is in inactive or non-cycling state following cell... Read More

Totipotent cell

Definition noun The cell that is capable of developing into any cell type. Supplement In a developing embryo, totipotent... Read More

Plasmablast

Definition noun, plural: plasmablasts An antibody-producing stem cell that could give rise to another of its kind or... Read More

White blood cell

Definition noun, plural: white blood cells Any of the nucleated blood cells that lack hemoglobin, with a primary role in the... Read More

Common lymphoid progenitor cell

Definition noun The progenitor cell in the lymphoid lineage capable of differentiating into lymphocyte and lymphoid... Read More

Dedifferentiation

Definition noun (developmental biology) A cellular process in which a differentiated cell loses its special form or... Read More

Smooth muscle

The smooth muscle can be described as a type of muscle in the human body that is non-striated and involuntary in action.... Read More

Protist

Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with a nucleus. However, they are... Read More

Xylem

Xylem Definition Xylem is defined as a plant tissue that transfers water and nutrients from roots to all over the plant... Read More

Erythroblast

Definition noun, plural: erythroblasts A nucleated red blood cell that develops into a reticulocyte Supplement The blood... Read More

CFU-GEMM

Definition noun A stem cell capable of differentiating into granulocyte, erythrocyte, monocyte, and... Read More

Cloning

Cloning Definition In biology, cloning is the process of producing similar populations of genetically identical individuals... Read More

Blood cell

Definition noun, plural: blood cells Any of the cells in blood, i.e. a red blood cell (erythrocyte) or a white blood cell... Read More

Simple squamous epithelium

Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More

Stems

External Form of a Woody Twig A woody twig, or stem, is an axis with leaves attached. The leaves are arranged in various... Read More

Asexual reproduction

Asexual Reproduction Definition What is asexual reproduction? Asexual reproduction is a mode of reproduction that does not... Read More

Monocytopoiesis

Definition noun, plural: monocytopoieses The hematopoiesis of monocytes Supplement Hematopoiesis is the process of forming... Read More

Proerythroblast

Definition noun, plural: proerythroblasts A progenitor cell that arises from the CFU-e, and then develops to become an... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

Monocyte

Definition noun, plural: monocytes A type of white blood cell capable of immune functions such as phagocytosis, and can... Read More

Megakaryocyte

Definition noun, plural: megakaryocytes A large cell in the bone marrow with characteristic lobulate nucleus and is... Read More

Growth

Growth Definition What is growth in biology? Growth is the irreversible increase of an organism’s size over a given... Read More