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Simple Science help needed grade 9 science, DNA: The Genetic Material

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Today I was given a sheet by the science teacher, we are to read a few pages out of a text book and fill in these blanks. I filled in most of these but I can't find the following 2 :doh:. Could someone please help me? :confused:

 

The genetic chemical which makes up your chromosomes and those of all ____________ things is called deotriboncleic acid or dna for short.

 

The genertic code is stored in the 3 billion nitrogen bases of dna, arranged in about ________________ genes on the 46 human chromosomes

 

Here below is prove that I did everything else, this is not helping me cheat. This is not a test only a worksheet and I wanted the answer before tomorrow

 

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