BIOS 546 in-class exercises

1. Create a web page linked to your home page with a graphics image on it. The image should contain a circle, a rectangle, and a hexagon, all labelled with their name and their coordinates (center and radius for the circle, x and y coordinates of the corners for the square and hexagon).

2. Create another image file (on the same web page) that contains a horizontal line that represents a DNA sequence that is 3000 base pairs (bp) long. have short vertical tick marks every 500 bp, and label them. Using different colors, mark the positions of the following restriction sites on the chromosome line:

Mbo I 344, 786, 822, 1753, 2022, 2118

Eco R1 556, 2782

Hinf I 67, 456, 995, 1441, 1880, 2348

3. Create a CGI program (that is, a form on on HTML page and a program in cgi-bin) that gives the user a choice of 1. object to draw: square, circle, or hexagon (use a select list); 2. Color of the object: red, blue, green, black (use a text box and return an error message if the user enters something other than these colors--make it case-insensitive); 3. Whether it should be filled or not (use a check box); and 4. Position on the screen (use 2 sets of radio buttons, for the x and y coordinates, and give the user 4 choices for each axis).