RNA & Protein Synthesis

How does RNA differ from DNA?

• RNA contains uracil and deoxyribose
• RNA contains ribose and thymine
• RNA contains uracil and ribose
• RNA contains adenine and ribose

How would the DNA sequence GCTATA be transcribed to mRNA?

• GCUAUA
• CGATAT
• CGAUAU
• GCUTUT

In messenger RNA, each codon specifies a particular

• nucleotide
• enzyme
• amino acid
• promoter

Which of the following statements about the genetic code is true?

• A codon can specify more than one amino acid
• Every codon specifies a different amino acid
• Some codons specify the same amino acid
• Some codons have no function at all

The process of making proteins on the ribosome based on instructions from messenger RNA is called

• transcription
• transformation
• translation
• molecular biology

Changes is DNA sequences that affect genetic information are known as

• replications
• mutations
• transformations
• translations

When the mRNA sequence leave the nucleus, what organelle does it travel to?

• mitochondria

• smooth ER

• ribosome

• vacuole

What best explains the interaction between tRNA and mRNA during translation?

• anticodons on the mRNA line up with complementary codons on the tRNA

• anticodons on the tRNA line up with complementary codons on the mRNA

• tRNA attach amino acids to the complementary mRNA sequence

• mRNA attach amino acids to the complementary tRNA sequence

What does tRNA "transfer"?

• amino acids

• nucleic acids

• nucleotides

• AUG

What do amino acids come together to join?

• a growing polypeptide chain (protein)

• a growing lipid

• a growing carbohydrate

• a growing nucleic acid