DNA replication Flashcards
what is DNA replication?
process by which other copies of DNA is made
when and where does DNA replication occur?
in the nucleus, before cell division
who created the semi conservative mode of reproduction?
Messelson and Stahl
what is a gene composed of?
a specific sequence of nucleotides (bases) that codes for a specific amino acid sequence
a specific protein that will perform a specific function
what is a chromosome composed of?
hundreds to thousands of genes
where is the code of DNA?
in the sequence of bases -> codes for an amino acid
the amino acid will form a chain = protein
what is a sequence of 3 bases called?
a codon
what does the double helix structure ensure?
that no errors are made during replication
what do complementary strands act as?
“spell check”
what happens if an incorrect or damaged base is added?
it will be replaced with a proper base
