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  Home >> Molecular Biology Dictionary >> Kanamycin - Kinetosome


Kanamycin

An antibiotic of the aminoglycoside family that poisons translation by binding to the ribsomes.

Kanr
Kanamucin-resistance gene. See selectable marker.

Kappa chain
One of two classes of antibody light chains. See lambda chain.

Karyogamy
The fusion of nuclei or nuclear material that occurs during sexual reproduction. See fertilization.

Karyokinesis
The division of a cell nucleus. See meiosis; mitosis.

Karyotype
The chromosome constitution of a cell, an individual, or of a related group of individuals, as defined both by the number and the morphology of the chromosomes, usually in mitotic metaphase; chromosomes arranged in order of length and according to position of Centromere; also, the abbreviated formula for the chromosome constitution, such as 47, XX + 21 for human Trisomy-21 (Down’s syndrome).

Kb
Kilobase pairs. See base pair; kilobase.

Kerogen
An fossilized organic material present in oil shale and some other sedimentary rocks.

Killer
T cells T cells that carry T-cell receptors and kill cells displaying the recognized antigens.

Kilobase
(kb) A length unit equal to 1000 base pairs of a double stranded nucleic acid molecule. One kilobase of double stranded DNA has a mass of about 660 kilodalton.

Karyogram
A diagram representing the characteristic features of the chromosomes of a species.

Kilobase pairs (kb)
Used interchangeably with kilobase.

Kinase
A kinase is in general an enzyme that catalyzes the transfer of a phosphate group from ATP to something else. In molecular biology, it has acquired the more specific verbal usage for the transfer onto DNA of a radiolabeled phosphate group. This would be done in order to use the resultant “hot” DNA as a probe.

Kinetochores
Two parallel bushlike filaments situated in the Centromere of a chromosome.

Kinetosome
Granular cytoplasmic structure which forms the base of a cilium or flagellum. cf basal body.

 

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