Nucleotides, Nucleic Acids and DNA Structure Crossword Puzzle

QUESTIONS LIST:

• nucleosides: compounds formed when a base is linked to a sugar via a glycosidic bond
• nucleotide: formed when phosphoric acid is esterified with an -oh of the monosaccharide
• pyrimidine: bases; contains six membered rings
• purine: base, parent compounds of adenine and guanine
• pentoses: sugar types found in nucleosides
• glycosidic: bond type that links base to sugars in nucleosides
• double helix:two polynucleotide chains wrapped around each other.
• major groove: larger of two empty spaces in an imaginary cylinder that encloses the dna double helix
• bdna: considered the normal, physiological dna form
• five: number of main types of histones
• dna supercoils: extra twists in closed circular dna
• topoisomerases: enzymes that relax supercoiling in closed circular dna.
• dna gyrase: bacterial topoisomerase that introduces negative supercoils into dna.
• histones: basic proteins found in eukaryotic dna
• chromatin: complex of dna and protein found in eukaryotic nuclei
• thymine: pyrimidine base in dna; replaced by uracil in rna
• rna interference: short stretches of rna; have control over gene expression
• ribosomal rna: one of the 3 main types of rna; the site for protein synthesis
• dehydration synthesis: type of reaction found in adp synthesis.