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Across
a virus that infects bacteria
What unwinds and unzips or open the the two strands of the DNA double helix molecule?
substance such as a chemical that causes mutations
the sub-unit of nucleic acid formed from a simple sugar, a phosphate group, and a nitrogenous base
in RNA processing the coding sequence that remains in the final mRNA.
the process of changing one substance or organism into another. ex: Frederick Griffith R-strain bacteria into S-strain bacteria. The R-strain took up the DNA form the S-strain and took not he characteristics of the S-strain.
type of RNA that associates with proteins to form ribosomes
process in which mRNA is synthesized from the template DNA
twisted ladder shape of DNA, formed by two nucleotide strands twisted around each
Down
process in which mRNA attaches to the ribosome and a protein is assembled
Segments of DNA that control a trait are called
type of RNA that carries genetic information from DNA in the nucleus to direct protein synthesis in the cytoplasm
in RNA processing, the intervening coding sequence missing form the final mRNA.
permanent change in a cell's DNA, ranging form changes in a single base pair to deletions of large sections of chromosomes
repeating sub-unit of chromatin fibers, consisting of DNA coiled around histones.
a specific type of virus that invades only bacterial cells
type of RNA that trans ports amino acids to the ribosome
ribonucleic acid; guides protein synthesis