DNA Flashcards
(13 cards)
What is the role of the triplet code?
They code for an amino acid. they act as start and stop signals in DNA replication.
What are the 4 bases?
Adenine Cytosine Guanine Thymine Uracil (RNA)
what is a gene?
A sequence based on a DNA molecule coding for a specific amino acid in a polypeptide chain.
where does the bond form between two mono Nucleotides?
Between the sugar and the phosphate group
What does semi conservative replication mean?
Each DNA molecules contains one original parent strand
Where does transcription occur?
In the nucleus
what is the template strand used for?
It’s used in the production of messenger RNA
every triplet code on DNA has a …
complimentary codon on mRNA
what happens after the completed mRNA leaves the nuclear envelope?
It enters the cytoplasm
what does the anticodon do?
it carries 3 bases which pair with the bases on the mRNA codon
“Complimentary bases”
what does tRNA carry?
tRNA carries an amino acid
what bonds are involved with protein synthesis?
Peptide bonds
What is the name of the enzyme which unzips the DNA strands
Helicase
