Question

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.

Answer 1

DNA and RNA are made up of repeating nucleotides.

Step-by-step explanation:

DNA: it stands for deoxyribose nucleic acid.

RNA: it stands for ribose nucleic acid

Ribose and deoxyribose are the sugar components

nucleotides are made up of nucleoside and phosphate groups

nucleoside is nitrogen base and sugar

A) DNA and RNA are made up of repeating nucleotides: thus it is true for both DNA and RNA.

B)DNA and RNA have identical structures: False, DNA is double stranded and RNA is single stranded.

C)DNA and RNA use the same four bases: False

DNA has cytosine, adenine, thymine, guanine

RNA has cytosine, adenine, uracil, guanine.

D) DNA and RNA use the same sugar: False.

DNA: it has deoxyribose sugar.

RNA: it has ribose sugar.

Answer 2

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.

Hope this helps!