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Which of the following is NOT one of the four nitrogenous bases found in DNA nucleotides?a) Adenine (A)b) Guanine (G)c) Uracil (U)d) Thymine (T)
DNA nucleotides contain a phosphate group. (True/False)
What are DNA nucleotides composed of?a) Ribose sugar, phosphate group, adenine baseb) Deoxyribose sugar, phosphate group, adenine basec) Ribose sugar, phosphate group, uracil based) Deoxyribose sugar, phosphate group, uracil base
The complete set of proteins which can be synthesized by the organism's genome is called the:
How many high-energy phosphate bonds need be broken to power inclusion of a single amino acid in a polypeptide?
The triplet group of bases which says, 'Put this amino acid here' is called a/an:
The molecule possessing the anticodon and which carries amino acids to the site of protein synthesis is called:
If replication is stopped before completion, small pieces of DNA are found. These are known as:
The genetic code is a triplet code, with four bases taken three at a time, giving 64 combinations, enough for 21 amino acids and then some. If it were a duplex code, how many amino acids could be coded for?
During replication, DNA strands separate, causing supercoiling. These supercoils are removed by:
Synthesis of both DNA and RNA start at the 5' end of the growing chain, or the 3' end of the template. Synthesis of protein, however, starts at the 5' end of the mRNA template. Of what value could this be to the organism?
In eukaryotes, messenger RNA is synthesized by an enzyme called:
Degeneracy in the genetic code seems wasteful. Of what possible value could degeneracy be, when it allows or requires more than one possible codon for most amino acids?
What is the source of energy used by aminoacyl-tRNA synthetase to power the reaction which attaches an amino acid to its tRNA?
The leading strand of DNA being formed is continuous, but the lagging strand forms a number of small pieces of DNA. These are joined by enzymes called:
Double-stranded DNA strands separate and replication occurs at a portion of the double helix called the:
Some genes are turned on direct mRNA synthesis only upon demand, but other genes appear to be turned on at all times. These genes are called:
In DNA, a guanine base on one strand pairs with another base on the complementary strand. Which one?
The DNA of prokaryotes is attached to a protein core, forming a nucleoid. In eukaryotes, the DNA forms chromatin by complexing with:
During transcription, movement of the tRNA-polypeptide from the amino acid site of the ribosome to the peptide site requires a source of energy in the form of:

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