admin answers:

When I was in HS I made one with thick wire and beads. I chose different size/shape/colored beads to stand for the sugar, phosphate, and bases.

admin answers:

Good info & example here:

http://www.miniscience.com/projects/DNAmodel/index.html

and more

http://biology.about.com/od/biologysciencefair/a/aa102005a.htm

http://www.starsandseas.com/SAS%20Cells/DNA%20Replication/dnarepli_model.htm

http://school.discovery.com/lessonplans/programs/modeldna/

http://www.kent.k12.wa.us/staff/TimLynch/sci_class/projects/dna.html

admin answers:

10 base pairs per one complete turn of the helix (Assuming that a complete turn is 360 degrees) means that for every ”2 twists” that your helix makes, you should be able to count 10 base pairs within that space.

For the materials, you could use toys (such as K’NEX). Or wood carved in the right shape and glued together.

An example of DNA made with K’NEX can be found here. Http://www.instructables.com/image/FUPP56DFHX0Z2HG/Big-knex-DNA.jpg

Hell you could even use steel-wire and bend it in a helix shape, then fold other steel wires around it, and cover it in colored cotton or something similar.

admin answers:

File the amendment on form 1040X – you can’t file another return now, you already filed, so you have to amend your original, not file again. But next year, if you qualify for the credit, file a 1040A – you can’t claim an education credit if you use a 1040EZ. When you are doing the education credit form, put in the number from your 1040EZ that corresponds to the same info on the 1040A or 1040. But fill out the education credit form and send it with the 1040X.

admin answers:

Supplies:
licorice sticks or ropes, red and black
gumdrops, jelly beans, or marshmallows in 4 colors
toothpicks
fishing line or string

Full details in link