Dna Flashcards
What is DNA made up of?
Nucleotide
What shape in DNA in?
Double helix
What is the backbone made out of?
Phosphate sugar group
What sugar is used in DNA?
Deoxyribose
What sugar is used in RNA?
Ribose
What is a nitrogenous base? Give 4-5 examples
A-adenine, thymine, g-guanine, c-cytosine, u-uricail
What are the DNA nitrogenous base pairings?
A=t, c = G
If DNA was stretched out how long would it be?
Over 1.5m
How are the nitrogenous bases bonded?
Hydrogen bonds
Which bases have what hydrogen bonds?
A&T =2 hydrogen bonds
C&G =3 hydrogen bonds
Total #of codons?
64
What is a codon?
A set of 3 nitrogenous bases which give instructions to RNA to code proteins
What does DNA determine?
What amino acids are strung together
What is a gene?
A segment of DNA that controls gene expression of specific codons to code for certain traits / protein
What are the nitrogenous bases of RNA?
A-adinine, u- uracil, c-cytosine, G- guanine
What does DNA stand for?
Deoxyribonucleic acid
What does RNA stand for?
Ribonucleis acid
Where is DNA located?
Within the nucleus
What is DNA made of?
Nucleic acid
What organelles can be found in?
Mitrochrondria and chloroplast
Why do we have mRNA?
Since DNA is too large to fit through nucleus pores
Why is DNA often referred to as a blueprint?
DNA tells the cell how to build
What are the parts of “useless” DNA called
Introns
What are the parts of codable DNA called?
Exon