double X

'double X' can also refer to...

double X

double X

double-X n.

double-X n.

double bar (̿, X’’)

The doubling of the superorbital period of Cyg X-1

Inverse-Compton ghosts and double-lobed radio sources in the X-ray sky

X-ray-induced DNA double-strand breaks in human sperm

Prognostic value of nutritional status in alcoholics, assessed by double-energy X-ray absorptiometry

Residual Chemosensory Capabilities in Double P2X2/P2X3 Purinergic Receptor Null Mice: Intraoral or Postingestive Detection?

Double P2X2/P2X3 Purinergic Receptor Knockout Mice Do Not Taste NaCl or the Artificial Sweetener SC45647

Residual Chemoresponsiveness to Acids in the Superior Laryngeal Nerve in “Taste-Blind” (P2X2/P2X3 Double-KO) Mice

Optical spectroscopy of X-Mega targets in the Carina nebula – VI. FO 15: a new O-type double-lined eclipsing binary

A laser-plasma–produced soft X-ray laser at 89 eV generates DNA double-strand breaks in human cancer cells

A potential double role of anti-Lewis X antibodies in Helicobacter pylori-associated gastroduodenal diseases

SDSS J1130+0058 an X-shaped radio source with double-peaked low-ionization emission lines: a binary black hole system?

Recognition and processing of double-stranded DNA by ExoX, a distributive 3′–5′ exonuclease

The Milky Way without X: an alternative interpretation of the double red clump in the Galactic bulge

Double-degenerate semidetached binaries with helium secondaries: cataclysmic variables, supersoft X-ray sources, supernovae and accretion-induced collapses


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In Drosophila melanogaster, an acrocentric, double-length X chromosome arising as a radiation-induced aberration. Such double X chromosomes are superior to the ordinary metacentric, attached X chromosomes (q.v.) for most stockkeeping operations, since they do not break up by crossing over with the Y. See also detached X.

Subjects: Genetics and Genomics.

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