Search Results for: cleavage
Meroblastic cleavage
Definition noun (embryology) The incomplete cleavage in telolecithal or megalecithal eggs of animals, such as birds and... Read More
Embryology
Embryology Definition Embryology is a branch of biology that deals with the topics concerning gamete formation... Read More
Holoblastic cleavage
Definition noun (embryology) The complete division of an isolecithal or microlecithal egg into... Read More
Indeterminate cleavage
Definition noun A type of cleavage on the basis of the potentiality of blastomeres in which the blastomeres (resulting... Read More
Determinate cleavage
Definition noun A type of cleavage on the basis of the potentiality of blastomeres in which the blastomeres (resulting from... Read More
Discoidal cleavage
Definition noun (embryology)A meroblastic cleavage wherein the cytoplasmic divisions are restricted to the animal pole,... Read More
Unequal cleavage
Definition noun A holoblastic cleavage producing blastomeres of unequal size. Supplement An example is the holoblastic... Read More
Superficial cleavage
Definition noun (embryology) A meroblastic cleavage wherein mitosis occurs without cytokinesis, resulting in many nuclei,... Read More
Cytokinesis
The cell cycle of eukaryotes is a cyclical series of biological events that certain asexual cells go through. The cell cycle... Read More
Hydrolytic cleavage
Hydrolytic cleavage --> hydrolysis (Science: chemistry) The splitting of a compound into fragments by the addition of... Read More
Cleavage product
Cleavage product a substance resulting from the splitting of a molecule into two or more simpler... Read More
Phosphodiester bond
Phosphodiester Bond Definition Phosphodiester bonds are the backbone of the strands of nucleic acid present in the life... Read More
Cleavage site
Definition noun, plural: restriction sites The site in a polynucleotide chain as to where the restriction enzyme cleaves... Read More
Complement
Complement (Science: immunology) a term originally used to refer to the heat labile factor in serum that causes immune... Read More
Cell plate
Definition noun A disc like structure in the plane of the equator of the spindle that separates the two sets of chromosomes... Read More
Nuclease S1
Definition noun An endonuclease enzyme capable of degrading single-stranded DNA and RNA Supplement The nuclease S1 is a... Read More
Dehydration reaction
What is dehydration synthesis? A dehydration reaction is a form of biochemical reaction wherein a water molecule is lost or... Read More
Proteoglycan
What are proteoglycans? Proteoglycans are primarily a type of polysaccharide. Structurally, proteoglycans are... Read More
Restriction enzyme
Definition noun, plural: restriction enzymes An enzyme that catalyzes the cleavage of DNA at restriction sites, producing... Read More
Segmentation
Definition noun, plural: segmentation (1) (embryology) Cleavage, i.e. the repeated division of a fertilized ovum forming... Read More
Segmentation cavity
Definition noun The fluid-filled cavity inside the early forms of embryo, e.g. of blastula. Supplement The presence of this... Read More
Steroidogenesis
Definition noun, plural: steroidogeneses The biosynthesis of steroid hormones from cholesterol by various cells, such as... 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
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
Human Reproduction
Terminology and Concepts Primary reproductive organs are called gonads - testes in the male and ovaries in the female.... Read More
Blastocoel
Definition noun The primordial, fluid-filled cavity inside the early forms of embryo, e.g. of blastula. Supplement The... Read More
Phosphorylation
Phosphorylation Definition We can define phosphorylation as a biochemical process in which a phosphate molecule is added to... Read More