22 terms

Structure of DNA and RNA

Key points relative to the structure of DNA
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Terms in this set (...)

DNA Shape
Double Helix, spiral staircase, twisted ladder
Monomer of nucleic acids
nucleotides
nucleotide components
sugar, nitrogenous base, phosphate group
nucleotide arrangement
nitrogen base is bonded to the sugar which is bonded to the phosphate group.
DNA nitrogen bases
adenine, cytosine, guanine, thymine
DNA complimentary base pairs
A & T, C & G
2 Hydrogen bonds found between
A & T
3 Hydrogen bonds found between
C & G
DNA backbone is made of
alternating sugars and phosphate groups
middle (rungs) of DNA are composed of?
2 nitrogen bases
the 5-carbon sugar found in DNA
deoxyribose
the 5-carbon sugar found in RNA
ribose
RNA nitrogen bases
adenine, cytosine, guanine, uracil
RNA number of strands
one
nitrogen base paring from DNA to RNA
A & U, T & A, C & G, G & C
DNA and RNA are examples of this type of macromolecule
Nucleic Acid
DNA stands for
Deoxyribonucleic acid
RNA stands for
Ribonucleic acid
DNA number of strands
two
Chromosome
composed of DNA wrapped around histone proteins
Chromatid
Half of a chromosome after DNA replication, attached at a centromere
Chromatin
Uncoiled DNA

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