DNA (Leaving Cert Biology): Flashcards
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Practise the cards
14 cards from this deck
% of DNA in chromosomes
% of DNA in chromosomes
40%
% of protein in chromosomes
% of protein in chromosomes
60%
Role of histones
Role of histones
Help organise DNA
DNA stands for
DNA stands for
Deoxyribonucleic acid
Who discovered DNA structure & when
Who discovered DNA structure & when
Watson and Crick in 1953
Length of DNA per human cell
Length of DNA per human cell
About 3 metres
Shape of DNA structure
Shape of DNA structure
Double helix
Building block of DNA
Building block of DNA
Nucleotide
Sugar in DNA nucleotide
Sugar in DNA nucleotide
Deoxyribose
Four nitrogen bases in DNA
Four nitrogen bases in DNA
Adenine, Guanine, Cytosine, Thymine
Adenine (A) pairs with
Adenine (A) pairs with
Thymine (T)
Cytosine (C) pairs with
Cytosine (C) pairs with
Guanine (G)
H-bonds between A and T
H-bonds between A and T
2 hydrogen bonds
H-bonds between C and G
H-bonds between C and G
3 hydrogen bonds