88 results found

Search Results for: cell divisions

Sexual reproduction

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More


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

Homologous chromosome

A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More

The Many Facets of SDF-1alpha CXCR4 Agonists and Antagonists on Hematopoietic Progenitor Cells

K. Imai, M. Kobayashi, and J. Wang, et al., “Selective secretion of chemoattractants for haemopoietic progenitor cells by... Read More

Cell division

Definition noun, plural: cell divisions The process in which the parent cell divides, eventually giving rise to new daughter... Read More


Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More


Plant Definition (botany) Any of the eukaryotic organisms of the biological kingdom Plantae, characterized by being... Read More


Cancer definition In biology, cancer is defined as the malignant growth due to uncontrolled cell division. It is now used... Read More


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

Researchers Examine Mechanisms That Help Cancer Cells Proliferate

A process that limits the number of times a cell divides works much differently than had been thought, opening the door to... Read More

Can a Single Layer of Cells Control a Leaf’s Size?

Ever looked carefully at the leaves on a plant and noticed their various sizes and shapes? Why are they different? What... Read More


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


Definition noun plural: protoplasms pro·to·plasm, ˈprəʊtəˌplæzəm The fluid living content of the cell that... Read More


Zygote Definition What is a zygote? A zygote is a fertilized eukaryotic cell. In biology, medical science, and other allied... Read More

The stem cells that weren’t there

Diabetes researchers, investigating how the body supplies itself with insulin, discovered to their surprise that adult stem... Read More

World’s First Cloned Transgenic Goats Born

By SARAH SUE GOLDSMITH, LSU News Service BATON ROUGE -- The world's first cloned transgenic goats have been born as part... Read More

What keeps the nervous system intact?

Researchers identify for the first time proteins vital to maintaining nervous system architecture Researchers at Columbia... Read More

Progenitor cell

progenitor cell (Science: cell biology) In development a parent cell that gives rise to a distinct cell lineage by a series... Read More


Definition noun plural: nucleoplasm nu·cle·o·plasm, ˈnjuːklɪəˌplæzəm (cell biology) The protoplasm of the... Read More


Senescence Definition Senescence is defined as biological aging. In cell biology, it refers to the cell wherein it is no... Read More


Definition noun The phase following prophase and preceding anaphase of cell divisions (i.e. mitosis and meiosis), and... Read More


Definition noun The phase following metaphase and preceding telophase of cell divisions (i.e. mitosis and meiosis), and... Read More


Definition noun The final phase following anaphase of cell divisions (i.e. mitosis and meiosis), and highlighted by the... Read More

Worm Studies Give Researchers New Perspective on Embryo Formation

      Networks of functionally linked genes and proteins (shown as... Read More

Characterization of expressed sequence tags obtained by SSH during somatic embryogenesis in Cichorium intybus L.

Sylvain Legrand, Theo Hendriks, Jean-Louis Hilbert and Marie-Christine QuilletAbstract (provisional) Background Somatic... Read More

Asymmetric cell division in plant development

Heidstra R. Department of Biology, Section Molecular Genetics, Utrecht University, Padualaan 8, 3584CH Utrecht,... Read More


Definition noun (genetics) The chromosomal variation due to a loss or a gain of one or more chromosomes resulting in the... Read More


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

CHECKING HOW CELLS GROW: New research dismisses a widely held assumption about cell growth

Research published today in Journal of Biology challenges an assumption about cell growth that underpins modern cellular... Read More

Phase resting

phase, resting More appropriately called interphase. The interval in the cell cycle between two cell divisions when the... Read More


Definition noun The phase following interphase and preceding metaphase of cell divisions (i.e. mitosis and meiosis), and in... Read More

Not Junk: ‘Jumping Genes’ Critical For Early Embryo

Jumping genes, also known as transposons, are gaining momentum. They are considered either as slacking junks or maleficent... Read More

‘Speechless’ And ‘Mute’ Help Break The Silence Of The Leaves

Researchers have discovered two genes that guide land plants to develop microscopic pores that they can open and close as... Read More

Salk scientists get to the root of plant cell fate

La Jolla, CA — When Robert Burns compared his love to a red, red rose, he definitely wasn't referring to a topless mutant.... Read More

Doubling time

Doubling time (Science: cell biology) The time taken for a cell to complete the cell cycle. The amount of time between... Read More

Vascular plants

Definition of Vascular plants The term 'vascular' is derived from the Latin word vāsculum, vās, meaning "a container and... Read More