Which of the following accurately describes the properties of dna and rna? a. dna and rna are made up of repeating nucleotides. b. dna and rna have identical structures. c. dna and rna use the same four bases. d. dna and rna use the same sugar.

We will have to cross out the options we don't need. It's not option D because DNA uses sugar deoxyribose, and RNA uses sugar ribose. It's not option C because DNA is made up of adenine, thymine, guanine, and cytosine and they use different types of sugar. When it came down to options A, and B I had to choose A because DNA looks like a twisted ladder but RNA looks like a twisted staircase. So, the answer is option A "DNA and RNA are made up of repeating nucleotide's" because both are made up of them.

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specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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