What are code pieces of nucleic acids?

(this is for a crossword puzzle and strangely polypeptides does not fit!)
the spaces are: _ _ _ _ e _ _ _ _ _ _

What are the varients of a gene?
(it's not diversity like I thought it should be)
the spaces are _ i _ _ _ _ _

What are all codes for an organism?
(the 3rd letter of this word is the 1st letter of the 'code pieces of nucleic acids')
the spaces are: _ _ _ _ _ _

Thank you sincerely for your time!
-Lizzy

Amino acids should be #1

alleles
is # 2
your other word must be wrong. See:

http://biology.about.com/bldefalleles.htm

Finally #3
should be genome

see:
http://en.wikipedia.org/wiki/Genome

See if this work out.

1. The code pieces of nucleic acids are called nucleotides. A nucleotide is composed of a sugar molecule (deoxyribose or ribose), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine in DNA; or adenine, uracil, cytosine, or guanine in RNA). The word you are looking for with the spaces "_ _ _ e _ _ _ _ _ _" is "nucleotides."

2. Variants of a gene are called alleles. Alleles are different versions or forms of a gene. These variations can result from mutations or recombination during genetic processes. The word you are looking for with the spaces "_ i _ _ _ _ _" is "alleles."

3. The term that refers to all codes for an organism is the genome. The genome includes all the genetic material (DNA or RNA) of an organism, including all the genes and non-coding regions. The word you are looking for with the spaces "_ _ _ _ _ _" is "genome."

I hope this helps you solve your crossword puzzle!