1. The DNA molecules of different species differ in their :   phosphate backbone   sequence of bases   type of nucleotides   All of the above   Hint Half-n-half Clue   2. Each nucleotide in a DNA molecule consists of :   a phosphate group, a pentose sugar, and a oxygen base.   a sulfonyl group, a pentose sugar, and a nitrogeneous heterocyclic base.   a phosphate group, a hexose sugar and a nitrogeneous heterocyclic base.   a phosphate group,a pentose sugar and a nitrogeneous heterocyclic base.   Half-n-half Clue   3. Where would you expect to find genetic information describing the characteristics of a Dodo ?   In virtually every cell in its body.   In its feathers !   In the ribosomes.   In the primary spermatocytes.   Half-n-half Clue   4. The DNA molecule is a polymer. Its monomer units are :   amino acids   nucleic acids   nucleotides   nucleosides   Half-n-half Clue   5. A significant difference between prokaryotes and eukaryotes is :   Prokaryotes do not have DNA as their genetic material while eukaryotes do.   The DNA of prokaryotes floats freely around the cell while the DNA of eukaryotes is held within its nucleus.   Prokaryotes do not have ribosomes while eukaryotes do.   Prokaryote cells are not membrane-bound while eukaryote cells are.   Half-n-half Clue   6. A nucleoside consists of :   a pentose sugar and a oxygen base.   a hexose sugar and a nitrogeneous heterocyclic base.   a phosphate group, a pentose sugar and a nitrogeneous heterocyclic base.   a pentose sugar and a nitrogeneous heterocyclic base.   Half-n-half Clue   7. Which base is found in RNA but not DNA ?   Adenine   Cytosine   Thymine   Uracil   Half-n-half Clue