What is the composition of the rungs of the DNA ladder?

Answer

The rungs of a DNA ladder is made up of a phosphate group, 5-carbon sugar, and nitrogen bases. The carbon sugar in the ladder is called deoxiribose. The nitrogen bases in the ladder are guanine, adenine, thymine, and cytosine.
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it is made of nitrogen bases
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The rungs of the ladder are pairs of 4 types of nitrogen bases
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DNA ladder is made up of a phosphate group, 5-carbon sugar, and nitrogen bases. 5-carbon sugar is deoxiribose in DNA. these nitrogen bases are adenine, guanine, thymine, and cytosine
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The two strands of the DNA molecule are made of a repeating pattern of alternating sugar molecules and phosphate groups. These strands form the sides of a ladder-like structure. A
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