RNA and protein synthesis Flashcards
what type of strand is RNA
a single polynucleotide strand and it contains uracil as a base instead of thymine
what base does uracil pair with in protein synthesis
adenine
when is mRNA made and what is its function
it is made in transcription and it carries the genetic code from the DNA to the ribosomes where its used to make a protein during translation
what type of strand is mRNA
mRNA is a single polynucleotide strand
in mRNA what are codons
groups of three adjacent bases
what are codons also known as
triplets or base triplets
what is tRNA involved with and what is its function
translation. It carrie the amino acids that are used to make proteins to the ribososmes.
what type of strand is tRNA
tRNA is a single polynucleotide strand thats folded into a clover shape
what holds tRNA together
hydrogen bonds between specific base pairs
what does every single tRNA molecule have
a specific sequence of three bases at one end called an anticodon and also have an amino acid binding site at the other end
what is the first stage of protein synthesis
transcription
what occurs during transcription
an mRNA copy of a gene is made from DNA in eukaryotic cells, transcription takes place in the nucleus
where does transcription take place in prokaryotic cells
the cytoplasm
