Using the figure below, which end of the double helix,"A" or "B", would be considered the 5 prime end? B (type "A" or "B" in the blank) Which of the following statements would best explain your reasoning for question 1? 1 (type 1, 2 or 3 in the blank) The end of the DNA strand with the phosphate exposed is the 5 prime end The end of the DNA strand that shows the five carbon sugar pointing down is the 5 prime end The end of the DNA strand with the fifth carbon on the sugar molecule is the 5 prime end

What is the DNA (template) strand of the following DNA (coding) strand: CAGGATGAATTGCTC

DNA structure depends on base pairing of its four nucleotides, A, C, T, and G. Nucleotide A pairs with T, and nucleotide C pairs with G. This forms a four-letter DNA “alphabet." Because DNA codes for amino acids in sets of three nucleotides, there are 4 cubed (4'), or 64, possible combinations, coding for 20 different amino acids. What is the best explanation for why there is no selective advantage for DNA to have five nucleotides (e.g., A, C, T, G, and E) with C pairing with either G or functionally equivalent E? It would be impossible to form the DNA molecule, because it must have an equal number of Cs and Gs. Because G and E have the same role, there would still be four functional letters of the alphabet. Replication would be inaccurate because sometimes C would bond with G and sometimes C would bond with E. There would be a five-letter alphabet with 125 combinations, which is too numerous. It is impossible because there are not five known nucleotides in the cell.

If a DNA molecule is 22% adenine in any organism, which percentage of thymine will that DNA molecule contain? 22% 28% 44% 56% DNA contains a sugar. How many carbons does this sugar have? 6. 3 DNA contains a sugar. How many carbons does this sugar have? 6. 4. Which is the correct arrangement for a single DNA

The rungs in the middle of the twisted ladder of a DNA are called

What determines the sequence of nucleotides in the template strand of DNA? (The answer can be very basic don’t need lots of details)

A student has drawn an enlarged portion of a DNA “ladder” model to show two of the nucleotides in greater detail (in the same orientation as they would occur in the ladder model). Which two nucleotides did the student draw?

Which of the following base pairs is/are not possible in B-DNA? H O A and B O A and C O only A O only B O Band C O only C O all of them O none of them

Assume that the molar percentage of thymine in a double stranded DNA is 20. What are the percentages of the four bases (G, C, T, A)? b. The base content of a sample of DNA is as follows: A=31% G=31% T=19% C=19%. What conclusion can be drawn from this information?

Using the figure below, what is molecule "A" (type a 1, 2 or 3 in the blank) nuclease ligase DNA polymerase What is the function of molecule "A"? to separate the double helix into two to piece together the Okazaki segments to copy the new DNA strand to the old strand by complementary base pairing Using the figure below, what is molecule "G" (type a 1, 2 or 3 in the blank) nuclease ligase DNA polymerase What is the function of molecule "G"? to separate the double helix into two to piece