How to Construct a DNA Ladder Worksheet
- 1). Leave 3 inches at the top of your page to write your directions later.
- 2). Use a pencil to draw a 5 1/2-inch long vertical line 2 inches in from the side of the paper.
- 3). Draw another 5 1/2-inch-long vertical line 4 inches to the right of the first line.
- 4). Lay a ruler next to the left line and make a small, light horizontal line every half inch along the line until you have 10 marks.
- 5). Repeat for the right line.
- 6). Draw a 1/2-inch horizontal line on the right side of the left line at each of the marks made in step 4.
- 7). Draw a 1/2-inch horizontal line on the left side of the right line at each of the marks made in Step 5.
- 8). Draw a horizontal line across the page just below the ladder.
- 9). Draw 20 1-inch-by-1-inch boxes.
- 10
Fill five boxes with the letter A, five boxes with the letter G, five boxes with the letter C and five boxes with the letter T. - 11
Retrace all of the pencil lines with a black felt pen to make them dark enough for photocopying.
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