- Y (in genetics)
- The Y chromosome, the sex chromosome found in normal males, together with an X chromosome.
Medical dictionary. 2011.
Medical dictionary. 2011.
X (in genetics) — Although the letter X can be used as a symbol in various ways (such as with X rays, the X axis of a graph, etc.), "the X " in genetics and medicine today usually refers to the X chromosome. The X is the sex chromosome that is found… … Medical dictionary
Y-chromosomal Aaron — is the name given to the hypothesised most recent common ancestor of many of the patrilineal Jewish priestly caste known as Kohanim (singular Kohen , Cohen , or Kohane). In the Torah, this ancestor is identified as Aaron, the brother of Moses.… … Wikipedia
genetics — /jeuh net iks/, n. (used with a sing. v.) 1. Biol. the science of heredity, dealing with resemblances and differences of related organisms resulting from the interaction of their genes and the environment. 2. the genetic properties and phenomena… … Universalium
genetics, human — ▪ biology Introduction study of the inheritance of characteristics by children from parents. Inheritance in humans does not differ in any fundamental way from that in other organisms. The study of human heredity occupies a central… … Universalium
Genetics — This article is about the general scientific term. For the scientific journal, see Genetics (journal). Part of a series on Genetics Key components Chromosome DNA • RNA Genome … Wikipedia
Y-chromosomal Adam — Y chromosome in descendants of one human male In human genetics, Y chromosomal Adam ( Y MRCA) is the theoretical most recent common ancestor (MRCA) from whom all living people are descended patrilineally (tracing back along the paternal lines of… … Wikipedia
Y Touring Theatre Company — Y Touring Theatre CompanyY Touring Theatre Company is Central YMCA’s ITC/Equity registered, award winning professional theatre company, founded in 1989 by Nigel Townsend. Mission statementY Touring’s mission is to create high quality theatre,… … Wikipedia
Y linkage — In mammals, Y linkage refers to when a phenotypic trait is determined by an allele (or gene) on the Y chromosome. The Y chromosome is small and does not contain many genes, therefore few traits are Y linked, and so Y linked diseases are rare. As… … Wikipedia
Y chromosome — ► NOUN Genetics ▪ (in humans and other mammals) a sex chromosome which is normally present only in male cells, which are designated XY. Compare with X CHROMOSOME(Cf. ↑X chromosome) … English terms dictionary
Y chromosome — Genetics. a sex chromosome of humans and most mammals that is present only in males and is paired with an X chromosome. Cf. X chromosome. [1920 25] * * * … Universalium