3bio9 Flashcards
C3 vs C4 efficiency
-inverse
-temperature
They’re best at inverse CO2 and temperature levels. C3 is more efficient at low temperature and C4 is more efficient at high.
Cam photosynthesis
Many plants that live in dry climates do cam photosynthesis. Here stomata close during the day because the carbon cycle occurs. Stomata open at night because carbon fixation occurs.
leading vs lagging
leading is built toward the replication fork and lagging is built away. leading needs one primer but lagging requires multiple
Phases in common of transcription replication translation
initiation, elongation and termination
Remove
An initiator tRNA binds to the start codon, and it has a methionine
Remove
A stop codon, for which no tRNA exists
list types of mutations
Point, Chromosome, amplification, frameshift, silent, missense, nonsense, deletion, inversion, insertion, translocation
Gene expression in prokaryotes
-mRNA
-operator
-lac
-trp
Operons are transcribed in a single mRNA. The operator, is the binding sequence for the activator or repressor. The lac operon is lactose and The trp operon is tryptophan.