In diploid organisms, the attribute of a specified character (or phenotype) is said to be recessive if it is masked when in the presence of a dominant allele. A recessive phenotype is expressed only in homozygotes (or, for X-linked traits, also in...

n. (RP) A certain accent of British English (or more precisely a group of closely related accents). Though used by perhaps no more than 3 per cent of the British population, RP is generally acknowledged as the prestige standard in England and also by...

n. In some theories of rule ordering, notably partial ordering, a rule which fails to apply when its structural description is met if there is another rule taking precedence over it whose SD is met at the same time. Sommerstein...

see recessive...

The Buenos Aires Zoo has been swamped with thousands of suggested names for three rare white tiger cubs that made their public debut this week.The cubs _ two females and a male _ were born Dec. 23 to parents Conde and Bety at the Argentine...

The Buenos Aires Zoo has been swamped with thousands of suggested names for three rare white tiger cubs that made their public debut this week.The cubs _ two females and a male _ were born Dec. 23 to parents Conde and Bety at the Argentine...

The Buenos Aires Zoo has been swamped with thousands of suggested names for three rare white tiger cubs that made their public debut this week.The cubs _ two females and a male _ were born Dec. 23 to parents Conde and Bety at the Argentine...

This white alligator has it made in the shade. Without an alligator's normal dark camouflaging color, the new inhabitant at the Knoxville Zoo would not live long while exposed to predators or the sun.In an exhibit made to look like the Louisiana bayou with tree...