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Questions and Answers
What is DNA made up of?
How is Ribose linked to phosphate in RNA?
How many base pairs are there in a full turn of a DNA molecule?
What is the backbone of DNA made of?
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Which nitrogen bases are found in DNA?
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Which of the following oligonucleotides could form a hairpin structure?
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If a piece of 100 bp DNA has 32 cytosine, how many thymine is present in that DNA?
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Which of the following DNAs has mirror repeats?
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Which of the following DNAs has a palindromic sequence?
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Study Notes
DNA Structure
- DNA is composed of nitrogen bases, sugar molecules, and phosphate groups.
RNA Structure
- In RNA, ribose is linked to phosphate through a phosphodiester bond.
DNA Helix
- One full turn of a DNA molecule consists of 10 base pairs.
DNA Backbone
- The backbone of DNA is composed of sugar molecules and phosphate groups.
Nitrogen Bases in DNA
- DNA contains the nitrogen bases adenine (A), guanine (G), cytosine (C), and thymine (T).
Hairpin Structure
- An oligonucleotide with inverted repeats can form a hairpin structure.
DNA Composition
- If a 100 bp DNA has 32 cytosine, it will have 32 guanine (since C-G pairing) and 36 thymine (since A-T pairing).
Mirror Repeats and Palindromic Sequences
- DNA with inverted repeats has mirror repeats.
- DNA with a sequence that reads the same forward and backward has a palindromic sequence.
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Description
Test your knowledge on nucleotides and DNA with this practice quiz. Identify the components of a nucleotide, understand the structure of DNA, and learn about the link between ribose and phosphate in RNA. Perfect for biology enthusiasts and students studying genetics.
