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joja [24]
4 years ago
15

Many cells have a nucleus that contains chromosomes. These chromosomes carry genes that are composed of …

Biology
2 answers:
garri49 [273]4 years ago
6 0
The answer is B- dna molecules 

hope it helps 
Alisiya [41]4 years ago
3 0
B. It would be DNA molecules 
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