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Pollen Grain
What are Pollen Grains? Plants are unique structures and so they carry out mechanisms in special ways. Fertilization in... Read More
Digastric muscle
Digastric Definition The digastric muscle is a paired muscle located under the jaw, consisting of the anterior and... Read More
Pleiotropy
Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More
T-helper cell
Definition noun, plural: T-helper cells A type of T lymphocyte that assists by activating antigen-presenting leukocytes,... Read More
Superior pharyngeal constrictor
Definition noun (anatomy) The quadrilateral muscle in the pharynx, located superior to other pharyngeal constrictor muscles,... Read More
Nucleosome
Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... Read More
Sieve element
Definition noun (botany) A food-conducting cell in the phloem of vascular plants Supplement The phloem is the vascular... Read More
Flavin mononucleotide
Definition noun plural: flavin mononucleotides fla·vin mon·o·nu·cle·o·tide, ˌmɒnəʊˈnjuːklɪəˌtaɪd A... Read More
Mononucleotide
Definition noun plural: mononucleotides mon·o·nu·cle·o·tide, ˌmɒnəʊˈnjuːklɪəˌtaɪd A single nucleotide (as... Read More
Lysosomal enzyme
Definition noun plural: lysosomal enzymes ly·so·somal en·zyme, ˈlaɪsəˌsoʊm əl ˈɛnzaɪm (biochemistry) Any of... Read More
Transcription (biology)
In biology, transcription is the process of transcribing or making a copy of the genetic information stored in a DNA strand... Read More
Metamerism
Metamerism Definition Metamerism is the repetition of homologous body segments. This type of development can be seen in the... Read More
Gametokinetic hormone
Gametokinetic hormone --> follitropin An acidic glycoprotein hormone of the anterior pituitary that stimulates the... Read More
Acetabulum
Acetabulum (Science: anatomy) The hollow, cuplike portion of the pelvis into which the head of the thigh bone (femur)... Read More
Coordination
Coordination Definition When a person hears the word coordination, they think of order, organization, or even managing... Read More
Adipose tissue
Adipose Tissue Definition Adipose tissue, a specialized variety of connective tissue, is composed of lipid-rich cells known... Read More
Endoplasmic reticulum
Endoplasmic Reticulum Definition The endoplasmic reticulum is a membrane-bound organelle in cells of eukaryotic cells... Read More
Biological Cell Introduction
It only takes one biological cell to create an organism. In fact, there are countless species of single-celled organisms,... Read More