Crossword clues for karyotype
Douglas Harper's Etymology Dictionary
Wiktionary
n. 1 (context genetics English) The observed characteristics (number, type, shape, etc) of the chromosomes of an individual or species. 2 (context genetics English) A record of such characteristics, usually photographic. 3 (context obsolete genetics English) A group of individuals or species that have the same chromosomal characteristics. vb. To investigate or record such characteristics
WordNet
n. the appearance of the chromosomal makeup of a somatic cell in an individual or species (including the number and arrangement and size and structure of the chromosomes)
Wikipedia
A karyotype (from Greek κάρυον karyon, "kernel", "seed", or "nucleus", and τύπος typos, "general form") is the number and appearance of chromosomes in the nucleus of a eukaryotic cell. The term is also used for the complete set of chromosomes in a species, or an individual organism.
Karyotypes describe the chromosome count of an organism and what these chromosomes look like under a light microscope. Attention is paid to their length, the position of the centromeres, banding pattern, any differences between the sex chromosomes, and any other physical characteristics. The preparation and study of karyotypes is part of cytogenetics.
The study of whole sets of chromosomes is sometimes known as karyology. The chromosomes are depicted (by rearranging a photomicrograph) in a standard format known as a karyogram or idiogram: in pairs, ordered by size and position of centromere for chromosomes of the same size.
The basic number of chromosomes in the somatic cells of an individual or a species is called the somatic number and is designated 2n. Thus, in humans 2n = 46. In the germ-line (the sex cells) the chromosome number is n (humans: n = 23).
So, in normal diploid organisms, autosomal chromosomes are present in two copies. There may, or may not, be sex chromosomes. Polyploid cells have multiple copies of chromosomes and haploid cells have single copies.
The study of karyotypes is important for cell biology and genetics, and the results may be used in evolutionary biology ( karyosystematics) and medicine. Karyotypes can be used for many purposes; such as to study chromosomal aberrations, cellular function, taxonomic relationships, and to gather information about past evolutionary events.
Usage examples of "karyotype".
He had received the results of the endocrinological tests performed at Henry Ford Hospital, and so knew of my XY karyotype, my high plasma testosterone levels, and the absence in my blood of dihydrotestosterone.
She appears to be a happy, healthy girl with no visible signs of tomboyishness, despite her XY karyotype.
They gave Poppy Shelton clearance when they karyotyped the embryo and she celebrated with a party.