| TERMS | DEFINITIONS |
| Telocentric | The centromere is present at the ends of the chromatids. |
| Acrocentric | The centromere is present near the end of chromatids. the chromosomes have two very small arm and iwo very long arms. |
| Sub metacentric | The centromere is present near the middle of the chromatids. Chromosome contains arms of unequal length. |
| Metaccntric | ‘Hie centromere is present at the middle of the
chromat ids. Chromosome contains equal |
| Nucleosome | Four types of Histone protein form a core
particle called nucleosomc. |
| Looped domains | The solenoid fiber forms loops called loop |
| Heterochromatic region | These are inactive portions of chromosomes.
They show a banding pattern with certain |
| Euchromatic region | The active portions of chromosomes are
called euchromatic regions. |
| Karyotype | A karyotype is the complete set of all
chromosomes of a cell of any living organism. |
| Karyology | The stud) of karyotypes is known as |
| Colchicine | Colchicine is a drug which prevents |
abida