1. The process of protein manufacture within ribosomes using mRNA is called :   transcription   protein derivation   translation   None of the above   Hint Half-n-half Clue   2. A significant difference between prokaryotes and eukaryotes is :   Prokaryotes do not have ribosomes while eukaryotes do.   The DNA of prokaryotes floats freely around the cell while the DNA of eukaryotes is held within its nucleus.   Prokaryote cells are not membrane-bound while eukaryote cells are.   Prokaryotes do not have DNA as their genetic material while eukaryotes do.   Half-n-half Clue   3. Melting of DNA is a standard method for preparing "single stranded DNA". A 4000 kb (kilobase- pair) DNA molecule melts at 79oC. What percent of the base pairs are GC pairs?   2.44 %   24.4 %   42.4 %   30.4 %   Half-n-half Clue   4. The difference between DNA and RNA is :   The RNA sugar phosphate backbone contains ribose rather than deoxyribose.   DNA molecules are double stranded while RNA molecules are single stranded for the most part.   Thymine in DNA is replaced by Uracil in RNA.   All of the above.   Half-n-half Clue   5. The single stranded molecule that is transcribed from a DNA template (i.e a photocopy of a specific section of the DNA molecule) and is subsequently used to manufacture proteins is :   snRNA   rRNA   mRNA   tRNA   Half-n-half Clue   6. How does the sequence of a strand of DNA correspond to the amino acid sequence of a protein ? This concept is explained by the central dogma of molecular biology which states that :   DNA is replicated and sections of the replica are used to make protein.   DNA is used to make RNA which is used to make protein.   protein is manufactured directly from DNA without any intermediate.   None of the above.   Half-n-half Clue   7. The three pyrimidine bases in DNA are :   Adenine, Thymine and Guanine   Thymine, Guanine and Cytosine   Cytosine,Thymine and Uracil   Adenine, Uracil and Guanine   Half-n-half Clue