a test that analyzes chromosomes to determine if there is a genetic basis for repeated miscarriages.
A laboratory technique that allows scientists to view all of the human chromosomes at one time in black and white. It is useful for observing the number, size and shape of the chromosomes. Interpreting these karyotypes requires an expert, who might need hours to examine a single chromosome. Spectral karyotyping, on the other hand, "paints" each pair of chromosomes in a different fluorescent colour. Even non-experts can see instances where a chromosome, painted in one colour, has a small piece of a different chromosome, painted in another colour, attached to it.
A method of sexing which is non-invasive. A drop of blood is taken from the bird, usually by pulling out a blood feather. The pulp and blood from the feather is then cultured until there are enough cells to do a chromosome preparation. The number of chromosomes then is looked at to determine the sex of the bird. (See SURGICAL SEXING)
The determination of the number and structure of chromosomes in an individual.
A visual display of all chromosomes present in a cell, usually by arrangement in matched pairs. Used to detect structural and numerical abnormalities in chromosomes.
A test performed to analyze chromosomes for the presenceof genetic defects.