Question

2. DNA by the numbers: Write the correct number in each blank (when necessary, DNA). imber in each blank (when necessary, assume we are talking about B DNA strands in a double helix hydrogen bonds in an A-T base pair _the end of the strand that complementary base pairs with the 3' end of the second strand _hydrogen bonds in a G-C base pair phosphate groups in dATP _nucleotides in one turn of a double helix _phosphate groups in dCDP _phosphate groups in dTMP nm between two bases on a strand of DNA ratio between A and T nm in one turn of a double helix _ratio between Cand G nm in diameter 3. Fill in the chart to indicate the following differences between DNA and RNA (for the last three you can inst writo in

DNA Worksheet

DNA by the numbers : Write the correct number in each blank ( when necessary, assume we are talking about B DNA).

________ DNA strands in a double helix

________ hydrogen bonds in an A-T base pair

________ hydrogen bonds in a G-C base pair

_______nucleotides in one turn of a double helix

____nm between two bases on a strand of DNA

________ nm in one turn of a double helix

________ nm in diameter

________ the end of the strand the complementary base pairs with the 3' end of the second strand

________ phosphate groups in dATP

________ phosphate groups in dCDP

________ phosphate groups in dTMP

________ ratio between A and T

________ ratio between C and G

Answer 1

2 DNA strands in a double helix

2 hydrogen bond in an A - T base pair

3 hydrogen bonds in G - C base pair

___10____nucleotides in one turn of a double helix

___0. 34_nm between two bases on a strand of DNA

_____3. 4___ nm in one turn of a double helix

____20____ nm in diameter

________ the end of the strand the complementary base pairs with the 3' end of the second strand

_____3___ phosphate groups in dATP

________ phosphate groups in dCDP

___3_____ phosphate groups in dTMP

____1:1____ ratio between A and T

_____1:1__ ratio between C and G