If you refer to something as a marker for a particular quality or feature, you mean that it demonstrates the existence or presence of that quality or feature. Vitamin C is a good marker for the presence of other vitamins and nutrients in frozen food
(aka: "ball marker") usually a small, flat object (like a dime) used to mark the ball's position (usually, but not exclusively, on the green) while other players putt and/or the ball is cleaned
(also "ball marker") usually a small, flat object (like a dime) used to mark the ball's position (usually, but not exclusively, on the green) while other players putt and/or the ball is cleaned Example: When you're on the green you may mark the position of your ball with a marker/ballmarker
The soldier who forms the pilot of a wheeling column, or marks the direction of an alignment
A variable segment of DNA, often located near a gene An allele at the marker is typically inherited along with the corresponding allele at the nearby disease gene
A plastic block that marks the boundary between lanes There are seven track markers at each curve
1 Any biological feature that can be positioned with respect to other features on a chromosome, by genetic, physical or other mapping methods For example, a gene, anonymous DNA segment, mutation, or phenotype 2 A feature that distinguishes a particular biological state For example, an expression profile of natural or engineered genes, or a characteristic morphology 3 In ZFIN, a Marker is an object for which unique official nomenclature must be assigned Markers in ZFIN can be of type: gene, mutant, BAC/YAC, cDNA, EST, SSLP, SSR, STS, RAPD, RFLP