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What are the subunits of DNA and what is their primary function?
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4. Biomolecules
Nucleic Acids
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Which components make up a DNA molecule?
A
Nucleotides, each consisting of a sugar, a phosphate group, and a nitrogenous base
B
Monosaccharides and polysaccharides
C
Amino acids and phospholipids
D
Fatty acids and glycerol
Guida verificata passo dopo passo1
Understand that DNA is a type of nucleic acid, which is a macromolecule essential for all known forms of life.
Recognize that the basic building blocks of DNA are nucleotides. Each nucleotide consists of three components: a sugar molecule, a phosphate group, and a nitrogenous base.
Identify the sugar in DNA as deoxyribose, which is a five-carbon sugar. This sugar is part of the backbone of the DNA structure.
Learn that the phosphate group is linked to the sugar molecule, forming the backbone of the DNA strand. The phosphate groups connect the sugars of adjacent nucleotides.
Understand that the nitrogenous bases are adenine (A), thymine (T), cytosine (C), and guanine (G). These bases pair specifically (A with T, and C with G) to form the rungs of the DNA ladder.
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