lesson 9 unit 2 a
DNA
(or deoxyribonucleic acid) A complex molecule containing the genetic code.
RNA
(or ribonucleic acid) A nucleic acid which participates in the synthesis of proteins.
nucleic acid
A sequence of sugars, phosphates and nitrogenous organic bases: DNA and RNA.
Carrying the genetic code and determining an organism's structure and function are the functions of:
DNA
Which statement correctly relates to DNA and RNA:
RNA reads and translates the DNA code
Two bases connect the double chain of DNA like a step on a ladder.
True
Many scientists have concluded that coded information:
cannot arise by random undirected processes
Genetic codes contain:
complex information detailed instructions
The DNA molecule has a structure similar to a .
double helix
Nucleic acids carry the codes of life.
hereditary
The largest and most sophisticated molecules in a cell are _____.
nucleic acids
The connecting bases of DNA are always made of sets.
paired
What determines the coded information contained within DNA?
the sequence of bases making up the "rungs" of the ladder
Adenine pairs with , and guanine pairs with in DNA.
thymine cytosine
The sugar-phosphate backbones of DNA are connected to one another by sequences of different bases.
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