Centromeres
Sister chromatids are joined via this structure to which spindle fibers attach at cell division
Condensin
A protein complex associated with mitotic chromosomes that is involved in chromosome condensation
Constitutive heterochromatin
A condensed form associated with structural functions such as centromeres or telomeres
Euchromatin
Light staining chromosome region usually associated with gene expression
Host Range
The species a virus is capable of infecting
Introns
Removed from mature mRNAs
Kinetochore
Consisting of DNA and proteins, this is the chromosome attachment point for the spindle fibers
Nuclear Matrix
Complex of proteins and filaments maintaining chromosome elements in specific locations within the nucleus
Telomere
Maintain length and integrity of eukaryotic chromosome ends
Transposable element
DNA elements capable of movement within the genome
Catenanes
Interlocked circular molecules following replication
Conditional mutant
A mutant allele causes a mutant phenotype in only a certain environment (the restrictive condition) but causes a wild-type phenotype in a different environment (the permissive condition)
DNA replication
Double helical DNA copying
Fidelity
In reference to the accurate copying of DNA
Lagging strand
During replication, the DNA strand whose synthesis is discontinuous
Origin of replication
Those nucleotides specifying the start site for DNA synthesis
Primase
A DNA-dependent RNA polymerase
Proofreading function
Referring to the error-correcting quality of DNA polymerase
Semiconservative model
Wherein ever new dNA double heliz is a hybrid that consisted of one strand of old DNA bound to one strand of newly synthesized DNA
Telomerase
Elongates eukaryotic telomeres