78 results found

Search Results for: germ

Germ

Germ 1. (Science: biology) That which is to develop a new individual; as, the germ of a foetus, of a plant or flower, and... Read More

Germs

Germ 1. (Science: biology) That which is to develop a new individual; as, the germ of a foetus, of a plant or flower, and... Read More

Spermatogenesis

Spermatogenesis is the biological process of producing mature sperm cells, and occurs in the male gonad of a sexually... Read More

First Model to Show Rapid Transition Toward Complete Germ-soma Differentiation

Topics relating to evolution are sure to incite debate. Anyone who talks about life progression in the context of evolution... Read More

Spermiogenesis

Spermiogenesis definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

Germ cells

Germ cells The reproductive cells in multicellular... Read More

Germinal

Germinal Pertaining or belonging to a germ; as, the germinal vesicle. (Science: biology) germinal layers, the nucleus of the... Read More

Reinstatement of "germinal epithelium" of the ovary

Reinstatement of "germinal epithelium" of the ovary Takashi Nishida 1and Naoyo Nishida2 1Oita-Ken Saiseikai... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Jefferson researchers uncover biochemical clues to how cells migrate in embryos

The work offers potential insights into disease processes, including cancer Researchers at Jefferson Medical College and... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Germination

Definition noun, plural: germinations The stage in which a germ or a living thing starts to sprout, grow and... Read More

Inhibition of HMG CoA reductase reveals an unexpected role for cholesterol during PGC migration in the mouse

Inhibition of HMG CoA reductase reveals an unexpected role for cholesterol during PGC migration in the mouse Jiaxi Ding1 ,... Read More

Monoblastic

Definition adjective (1) Pertaining to a condition (especially of a blastula or ovum) in which there is only one primary... Read More

Meiosis

What is Meiosis? A simple definition of meiosis would be is this: meiosis is the process of cell division that results in... Read More

Somatic cell

Definition noun, plural: somatic cells Any cell of the body of a multicellular organism -- excluding the germ cells (i.e.... Read More

Spermatozoa and spermatids retrieved from frozen reproductive organs or frozen whole bodies of male mice can produce normal offspring

Abstract Cryopreservation of male germ cells is a strategy to conserve animal species and strains of animals valuable to... Read More

Molecule that restricts mouse cells’ potency could yield embryonic stem cells without the sacrifice of embryos

PHILADELPHIA – Scientists at the University of Pennsylvania have identified a receptor that plays a key role in... Read More

Toward improved antibiotics using proteins from marine diatoms

Researchers report a step toward development of a new type of antibiotic using proteins from marine diatoms. The... 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

Nurse cell

Definition noun, plural: nurse cells An accessory cell to a developing germ cell. Supplement Example of nurse cells are... Read More

Epiblast

Definition noun (embryology) The outer (upper) ectodermal layer of the embryonic disc, closer to the amniotic cavity, and... Read More

Triploblastic

Definition adjective Having three primary germ layers, such as ectoderm, mesoderm and endoderm. Supplement All higher and... Read More

Diploblastic

Definition adjective Pertaining to a condition in which there are two primary germ layers, such as ectoderm and... Read More

Haploid

In biology, haploid pertains to a condition, a cell, or an organism that has half of the usual complete set of chromosomes... Read More

Triploblasty

Definition noun (1) A condition of a blastula in which there are three primary germ layers: ectoderm, mesoderm and... Read More

Researchers Identify Enzyme That Turns On RNA

Knowing an organism's genome is good, but knowing what turns on its genes is even better. Scientists have long searched... Read More

Spermatogonium

Definition noun, plural: spermatogonia (1) An undifferentiated male germ cell in the male gonads that divides mitotically,... Read More

Hypoblast

Definition noun (embryology) The inner (lower) layer of the embryonic disc, located beneath the epiblast Supplement In... Read More

Modern Evolutionary Synthesis

Modern evolutionary synthesis Charles Darwin’s work on "Origin of Species" led to... Read More

Biomedicine and international human rights law: in search of a global consensus

Biomedicine and international human rights law: in search of a global consensus Roberto Andorno Bull World Health Organ... Read More

Gametocyte

Definition noun, plural: gametocytes A gamete-forming diploid germ cell Supplement A gametocyte is a gamete-forming cell.... Read More

Megakaryoblast

Definition noun, plural: megakaryoblasts A precursor cell that develops into a promegakaryocyte during... Read More

Ovocyte

Definition noun, plural: ovocytes (1) A female gametocyte. (2) A developing female germ cell or gamete. Supplement An... Read More

Haploidy

Definition noun (genetics) The state of being haploid, that is having half of the set of homologous chromosomes in somatic... Read More

Myoblast

Definition noun, plural: myoblasts The embryonic progenitor cell of the muscle cell Supplement Myoblasts are the embryonic... Read More

Oogonium

Definition noun, plural: oogonia (zoology) The diploid female gametogonium that gives rise to primary oocyte through... Read More

Chondroblast

Definition noun, plural: chondroblasts A cell actively producing the components of the extracellular matrix, and may form... Read More

Oocyte

Definition noun, plural: oocytes (1) A female gametocyte. (2) A developing female germ cell. Supplement The oocyte is an... Read More