Abstract: Methods are described for analyzing at least one polymorphic site in a biological sample containing at least one single-stranded template, including the steps of: combining the biological sample with a primer specific for each polymorphic site in each template and a primer extension preparation, to form an assay mixture; wherein the preparation includes: chain terminating nucleotides forming a first nucleotide class, chain elongating nucleotides forming a second nucleotide class such that the second nucleotide class does not include a nitrogenous base present in the first nucleotide class, and a template-dependent nucleic acid polymerase; incubating the mixture for a time and at a temperature sufficient to extend each primer by addition of at least one nucleotide; and determining the size of each extended primer. Kits suitable for practising the invention are also provided.

Abstract: Methods for washing sawdust are disclosed which include providing a mixture of sawdust and water to a vessel, subjecting the mixture to a reduced pressure so that gases present in the sawdust cause expansion therein and the sawdust rises to the surface of the mixture while the contaminants descend within the vessel, and withdrawing the sawdust from the vessel, in which the sawdust is withdrawn from the vessel at a location above the point where the sawdust and water enter the vessel. Apparatus for carrying out this method is also disclosed.

Abstract: A load carrier foot is intended to secure, on a vehicle roof (9), a load carrier strut, and has a support portion (7) which supports the foot on the vehicle. The load carrier foot is further provided with a clamping portion (12) which, under the action of a clamping mechanism (18, 22, 24), is urgeable against a bead (10) on the vehicle in order thereby to secure the load carrier foot. The clamping portion (12) is provided, in its central region, with a rockable or tiltable anchorage (13) in the body (1) of the load carrier foot so that a clamping member (14) located at its one end is movable into and out of engagement with the bead (10). The opposite end (15) of the clamping portion (12) is actuable by means of the one end (20) of a lever (18) pivotally secured in the body (1) and whose other end (21) is actuable by a cam section (24) on a pivotal operating handle (22).