Nucleotide Structure Flashcards

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1
Q

What elements
are nucleic acids made up of?

A

C,H,O,N,P

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2
Q

What are the two nucleic acids?

A

DNA (Deoxyribonucleic acid)
RNA (Ribonucleic acid)

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3
Q

What are nucleic acids for?

A
  • Carry genetic information
  • To make proteins
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4
Q

What is the monomer of a nucleic acid?

A

Nucleotide

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5
Q

What are the 3 parts of a nucleotide?

A

Phosphate group, pentose sugar, nitrogenous base

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6
Q

What is the charge of the phosphate group, and how does this help?

A

Negative
So DNA can interact with positively charged histones to form a stable chromosome.

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7
Q

What is the different between a purine and a pyrimadine?

A

Purines have 2 carbon rings
Pyrimadines have 1 carbon ring

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8
Q

Which bases are purines and pyrimadines in DNA and RNA?

A

DNA - A, G (purines)
- C,T (pyrimadines)

RNA - A,G (purines)
- C,U (pyrimadines)

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