MRNA and Trna Flashcards
give a propertie of Mrna
single stranded
what is Mrna involved in
transcription
translation
what does Trna do
transfers amino acids to ribsomes
what are the two features of Trna
anti codon
amino acid binding site
what is the anticodon
binds to complemetory mrna sequence
what is the amino acid binding site
binds to one specific amino acid
what is the gentic code
degenerate
what does degenerate mean
coded for by more than one triplet
what is dna replication
process by which dna makes a copy of its self during cell division
why is DNA replication important
so the amount of DNA doesn’t have to halve every time
what are the two types of replicaton
conservative
and semi conservative
what is the first step of the semi conservative model
DNA helicase breaks hydrogen bonds of complemetory base pairs and unzips the dna helix
how does this then become a new strand of DNA
free floating nucleotides form a hydrogen bond with their complementory base pair
what is the other enzyme used
dna polymerase
what does DNA polymerase do
catalyses the condensation reaction between nuclecotides forming ——————- bonds making dna
