Pyotr Ilyich Tchaikovsky (1840-1893) Most famous Russian classical music composer wrote in a variety of genres. He composed symphonies, operas, concertos, chamber music, sacred choral music, overtures, suites and ballets.
Medical Definition of Dizygotic twin. Dizygotic twin: A twins who have shared a common uterine environment with its twin but is due to a different fertilized ovum. Dizygotic twins are also called fraternal twins. Last Editorial Review: 6/9/2016.
Homozygous. Definition. adjective. (1) Of, or pertaining to an individual (or a condition in a cell or an organism) containing two copies of the same allele for a particular trait located at similar positions (loci) on paired chromosomes (see homologous chromosomes). (2) Having two identical alleles that code for the same trait.