Answer:
The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines- adenine and guanine.
Explanation:
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The two structure would provide a positive identification of an animal cell under a microscope are Golgi apparatus, mitochondrion <span />
The correct answer is D. Tissue
