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2.6 Structure of DNA and RNA. Nucleic Acid Structure. Draw the basic structure of a nucleotide, labelling its parts. Differentiate between the different types of nitrogenous bases.
DNA contains the 5 carbon sugar deoxyribose (hence the name deoxyribonucleic acid) whereas RNA contains ribose (ribonucleic acid). The deoxy prefix refers to the fact that deoxyribose is missing one of the oxygens (represented by the letter O) found in ribose. Examine the two sugars below.
24 wrz 2018 · The sugars in DNA are 2’-deoxyribose sugars in that the carbon at position 2’ lacks a hydroxyl group and instead has two hydrogen atoms. RNA, which we will consider in a later chapter, is a similar copolymer, but its sugars are ribose sugars, which contain a hydroxyl group at the 2’ position in place of one of the two hydrogen atoms.
Deoxyribose. Nitrogen. Base. Nucleotide. 17. The diagram below shows one side of an unzipped strand of DNA (replication). Write the letters – A, T, C, or G – of the bases that will pair with the bases on the strand. Some of the bases have been paired for you.
Examine the drawing of double-stranded DNA. Find an example of each of the chemical groups or atoms, listed below, in the drawing. If you haven’t done so already, label, and circle an example of each group or atom. a. a deoxyribose e. a phosphodiester bond.
1. What does DNA stand for? 2. Where do you find DNA in living things? 3. What is the function of DNA? During-lab observations: Label the DNA model diagram below. P = Phosphate, S = Sugar (deoxyribose), A, T, C, G = Bases.
DNA is a polymer of nucleotide monomers, each consisting of a phosphate, a deoxyribose sugar, and one of four nitrogenous bases: adenine (A), thymine (T), guanine (G), or cytosine (C). The nucleotides of DNA are arranged into a double helix based on the rules of base complementarity.
