12.2 Total Text (pg.345-350)

What is the first step in the process of decoding genetic messages?

• Mutation

• Translation

• Transcription

• Replication

How many different amino acids are commonly found in polypeptides?

• 10

• 20

• 64

• 4

What does a codon in the genetic code specify?

• A double helix structure

• A single amino acid

• A single nucleotide

• A pair of amino acids

How many possible three-base codons are there in the genetic code?

• 20

• 100

• 64

• 4

Which codon serves as the initiation or 'start' codon for protein synthesis?

• UAG

• UGG

• UAA

• AUG

What role do ribosomes play in protein synthesis?

• Transport amino acids into the cell

• Assemble amino acids into polypeptide chains

• Fold proteins into their final shape

• Copy DNA to mRNA

What is the process of decoding an mRNA message into a protein known as?

• Mutation

• Translation

• Replication

• Transcription

Which molecule carries the coded message that directs the process of translation?

• DNA

• mRNA

• tRNA

• rRNA

What is the complementary anticodon for the methionine codon AUG?

• AUG

• GTA

• UAC

• CAT

What did Gregor Mendel not know genes were primarily instructions for?

• Determining the gender of a newborn

• Regulating tissue growth

• Producing pigment

• Assembling proteins