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.
Heterozygous. Definition. adjective. (1) Of, or pertaining to an individual (or a condition in a cell or an organism) containing two different alleles for a particular trait. (2) Having dissimilar alleles that code for the same gene or trait.xample: a zygote having one dominant allele and one recessive allele, i.e. Aa, for a particular trait. Word origin: G. heteros hÃ©teros the other of, two, other + different, zygous which pertains to a. Zygote related: forms (heterozygosity). noun