Question

drag each label to the correct location on the image. arrange the symbols to form a dna molecule. (labels include adenine, cytosine, arrows, 5, 3 and empty boxes for dragging)

Explanation:

To form a DNA molecule, we use the base - pairing rules: adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). Also, DNA strands are antiparallel, meaning one strand runs in the 5' to 3' direction and the complementary strand runs in the 3' to 5' direction.

1. First, identify the direction of each strand. The strand with the 5' at the top will have a complementary strand with 3' at the top (antiparallel).
2. For the base - pairing: If we have a base like adenine (the red arrow - labeled adenine), its complementary base is thymine. If we have cytosine (the red - left arrow - labeled cytosine), its complementary base is guanine.
3. Arrange the bases according to the antiparallel nature of the DNA strands and the base - pairing rules. The green arrows and other colored arrows represent the direction of the strands. We need to match the bases (adenine, cytosine, etc.) to their complementary bases on the opposite strand while maintaining the 5' - 3' and 3' - 5' directionality.

For example, if one strand has a 5' to 3' direction (say, the strand with the green arrow going to the right, indicating 5' to 3'), the complementary strand will have a 3' to 5' direction (arrow going to the left). Then, adenine on one strand will pair with thymine on the other, and cytosine will pair with guanine.

Answer:

To solve this, follow these steps:

1. Determine the direction of each DNA strand (antiparallel: one 5'→3', the other 3'→5').
2. Apply base - pairing rules: A - T, C - G.
3. Drag adenine to pair with thymine (on the complementary strand with opposite direction) and cytosine to pair with guanine (on the complementary strand with opposite direction) while aligning with the strand directions (arrows).

(Note: Since this is a drag - and - drop problem, the final answer involves correctly placing adenine and cytosine (and their complementary bases) on the DNA strands according to the above rules. The specific placement would be such that adenine pairs with thymine on the antiparallel strand, and cytosine pairs with guanine on the antiparallel strand, with the strand directions (5' - 3' and 3' - 5') maintained as indicated by the arrows.)