Biology Flashcards
what does mRNA stand for?
Messenger RNA
What does tRNA stand for?
Transfer RNA
Who are the 4 scientists who discovered the double helix structure?
Rosalind Franklin, Maurice Wilkins, James Watson, Francis Crick (1953)
what does DNA stand for?
Deoxyribonucleic acid
what are the building blocks of DNA?
Nucleotides
what are the 4 nitrogen bases?
Adenine, Thymine, Guanine, Cytosine
What are purines?
Double rings, Adenine and guanine
What are pyrimidines?
One ring, Thymine and Cytosine
What is the backbone of DNA made of?
phosphate groups and 5 carbon sugars
What is the start codon and what amino acid does it code for?
AUG, Methionine
What is replication?
when DNA makes a copy of itself
What is trancription?
code of DNA is copied onto RNA
What is translation?
Proteins are made by ribosomes which reads the RNA
What does rRNA stand for?
Ribosomal RNA
what is the shape of DNA?
A double helix