DNA Central Dogma

What is the main function of genes within a chromosome?

• To replicate DNA

• To store energy

• To code for proteins

• To transport molecules

During transcription, what is the role of RNA polymerase?

• To bind to the ribosome

• To transport amino acids

• To synthesize mRNA

• To unzip the DNA strands

What is the start codon that initiates translation?

• AUG

• UAG

• UGA

• UAA

What happens when a stop codon is reached during translation?

• The polypeptide chain is released

• The mRNA is destroyed

• The ribosome starts over

• The tRNA detaches

How many different possible codons are there in the genetic code?

• 32

• 16

• 128

• 64