DNA Structure
What is a Double Helix?
The double helix is a description of the molecular shape of a double-stranded DNA molecule
What are amino Acids
Amino Acids are the building blocks of proteins..
What is mRNA ?
The type of RNA that is formed during transcription
What are proteins?
Proteins are made up of a chain of amino acids,monomers and then formed at the ribosomes
What mrna codons can cause a stop?
UGA-UAA-UAG
What does G pair with?
In DNA G always bond with C
What is an anticodon
A sequence of 3 nitrogen bases on the tRna to match mRNA
What does it mean to Transcribe?
To re-write or copy.
What is the start Codon of a Protein ?
The start of a protein is A-U-G
What mrna codons can make Leucine?
CUG-CUA- Any of these will make leucine CUU-UUA-UUG
What is Hydrogen Bonds
Holds the nitrogen bases together
What is the Ribosome
The structure that holds the mRNA during translation
Transcript STARTS with what molecule?
DNA
What is the start Codon of a Protein ?
the start of codon of a protein is AUG
Name the amino acids from this mrna sequence
CUG-UCA-GCA-AUG-UAG?
LEU-SER-ALA-METH- STOP
What is nucleotide?
Nucleotides form the basic structural unit of nucleic acids such as DNA.
What is Codon?
A sequence of three nucleotides which together form a unit of genetic code in a DNA or RNA molecule
Transcript ends with what molecule?
mRNA
What does protein require?
Protein require DNA,mRNA and tRNA
What mrna codons can cause a stop?
UGA-UAA-UAG
What are the 4 bases of DNA
Adenine
Thymine
Guanine
Cytosine
What is tRNA?
tRNA is a small RNA molecule that participates in protein synthesis
What is Nucleus?
Where transcription takes place
What are proteins?
Proteins are made up of a chain of amino acids,monomers and then formed at the ribosomes.
What does A-A-A translate to?
Lysine