noun, plural: segmentation
(1) (embryology) Cleavage, i.e. the repeated division of a fertilized ovum forming... Read More
Metamerism is the repetition of homologous body segments. This type of development can be seen in the... Read More
What is an arthropod? An arthropod is an invertebrate living organism characterized by the presence of... Read More
The gastrointestinal (GI) system includes the gastrointestinal tract (mouth, pharynx, esophagus, stomach, small intestine,... Read More
The fluid-filled cavity inside the early forms of embryo, e.g. of blastula.
The presence of this... Read More
A segmentation gene whose expression subdivides the embryo into a series of stripes, and sets the boundaries... Read More
A tick is an arachnid belonging to order Ixodida. There are three families identified: (1) Ixodidae (hard... Read More
Cell Adhesion Definition
Cell adhesion is the process in which a cell uses a specialized complex of proteins to get... Read More
Of, pertaining to, exhibiting, or characteristic of metamerism
The term metameric is used to... Read More
Kingdom Animalia Definition
Each person can say that they know of or can name at least one animal. However, do people know... Read More
noun, plural: zygotic-effect genes
(1) Any of the genes expressed in the early embryo.
(2) Any of the genes... Read More
(1) One of the pair-rule genes (together with hairy and runt) directly activated by gap gene products... Read More
The primordial, fluid-filled cavity inside the early forms of embryo, e.g. of blastula.
The... Read More
Polygenic inheritance refers to the kind of inheritance in which the trait is produced from the cumulative effects of many... Read More