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Chapter 16, BIO 111, (2 of 2)

Across
A repair system that removes and correctly replaces a damaged segment of DNA using the undamaged strand as a guide.
The complex of DNA and protein the makes up eukaryotic chromosomes. When the cell is not dividing, chromatin exists in its dispersed form, as a mass of very long thin fibers that are not visible with a light microscope.
The cellular process that uses specific enzymes to remove and replace incorrectly paired nucleotides.
A linking enzyme essential for DNA replication; catalyzes the covalent bonding 3' end of one DNA fragment to the 5' end of another DNA fragment.
Down
The less condensed form of eukaryotic chromatin that is available for transcription.
Catalyzes the lengthening of telomeres in Eukaryote germ cells.
The tandemly repetitive DNA at the end of a eukaryotic chromosome's DNA molecule. Telomeres protect the organism's genes from being eroded during successive rounds of replication. (series of TTAGGG- six nucleotide sequence. no genes)
An enzyme that cuts DNA and RNA, either removing one or a few bases or hydrolyzing the DNA or RNA completely into its component nucleotides.
Eukaryotic chromatin that stays highly compacted during interphase and is not transcribed.