1) DNA encodes a detailed set of plans, like a blueprint, for building different parts of the cell.

2) Deoxyribonucleic acid

3) ACTG - special rule:
A always pairs with T, and C always pairs with G

4) Instruction manuals for our body

5) DNA

6) 25,000

7) DNA

8) DNA packaged into compact units
OR
Effecient storage units for DNA

9) 46

10) X, Y

11) Thousands

12) Even with the most powerful electron microscope, you would have trouble seeing them.

13) Genes

14) The passing of traits from parents to child.

15) Every child receives half of his/her chromosomes from the mom and half from the dad.

16) 23

17) No, Yes

18) A notable feature or quality in a person.

19)Physical Traits and Behavioral Traits

20) Sunlight or dye can change the color of hair

21) FREE