nucleic acids test Flashcards
1
Q
how does a ribosome read mRNA?
A
one codon at a time
2
Q
how many nitrogen bases in a row makes a codon?
A
3
3
Q
what does mRNA translate to what is it translated by?
A
specific amino acids, tRNA
4
Q
what does each tRNA carry?
A
its anticodon and a specific amino acid
5
Q
how are amino acids bonded?
A
peptide bonds
6
Q
when do the amino acids bond?
A
when the codons are read
7
Q
start codon?
A
AUG
8
Q
end codon?
A
one of three stop codons
9
Q
what does a codon do?
A
buid a protein
10
Q
transcription?
A
making a copy of DNA in RNA language (in nucleus)
11
Q
transcription starts with a ______
A
DNA
12
Q
Transcription 2nd step:
A
dna helicase “unzips” DNA molecule
13
Q
3rd step of transcription
A
one strand is a template to make mRNA strand using RNA polymerase
14
Q
4th step in transcription
A
dna and rna separate
15
Q
step 5 in transcription
A
DNA reassembles
