In protein synthesis, the initiation of a polypeptide chain is typically started by an amino acid called methionine (Met).
This is because methionine has a special tRNA (transfer RNA) that recognizes the start codon (AUG) on the mRNA (messenger RNA) and initiates protein synthesis.
Fishes are the first formed Chordates, which is a phylum of animals that includes vertebrates (animals with backbones) and some invertebrates (animals without backbones).
Chordates are characterized by the presence of a notochord (a flexible, rod-like structure that provides support and stiffness) at some stage in their development.
Turner's syndrome is a genetic disorder caused by a monosomy, where a person has only one copy of the X chromosome (45,X or 45,X0) instead of the usual two (46,XX or 46,XY).
This results in a range of physical and developmental abnormalities.
Ticks and mites are members of the subclass Acari, which is a group of tiny arachnids that includes many parasitic species.
Ticks are ectoparasites that feed on the blood of animals and humans, while mites include both free-living and parasitic species, with some feeding on skin, blood, or other bodily secretions.
Phylloquinone, also known as Vitamin K1, is essential for blood coagulation in the body.
It plays a crucial role in the production of clotting factors II, VII, IX, and X, which are necessary for the formation of blood clots and stopping bleeding.
Glycagon is a polypeptide hormone secreted by the pancreas (specifically, by the alpha cells of the islets of Langerhans) that raises blood glucose levels by stimulating the liver to convert stored glycogen to glucose and release it into the bloodstream.
Down's syndrome, also known as Trisomy 21, is a genetic disorder caused by the presence of an extra copy of chromosome 21.
This occurs due to a process called nondisjunction, where the chromosomes fail to separate properly during cell division (meiosis), resulting in an extra copy of chromosome 21 being inherited.
