1B - More Biological Molecules > DNA > Flashcards

DNA Flashcards

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1
Q

Structure of DNA

A 
A double helix
2 long polynucleotide polymer chains
Wound around each other
Bases joined/linked by hydrogen bonds
Run in opposite directions (anti parallel)
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2
Q

A DNA molecule is…

A

The monomers linked together are called nucleotides

Linked by phosphodiester bonds

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3
Q

Each nucleotide consists of…

A

Phosphate group
Pentode sugar (deoxyribose)
Nitrogenous base

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4
Q

Eukaryotic DNA

A 
Wound around histones (proteins)
linear chromosomes
Contained within a nucleus
Larger 
Coiled up tightly
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5
Q

Prokaryotic DNA

A

Shorter and circular
Condensed to fit in the cell by supercoiling
Not contained within a nucleus

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1B - More Biological Molecules
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