Transcription And Translation

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

• mitochondria

• smooth ER

• ribosome

• vacuole

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

The process by which the genetic code of DNA is copied into a strand of RNA is called

• translation
• transcription
• transformation
• replication

Which of the following describes RNA?

• RNA is usually double-stranded and contains the base thymine
• RNA is usually single-stranded and contains the base uracil
• RNA is longer than DNA and uses five bases to encode information
• RNA is made in the nucleus of eukaryotic cells and stays there to carry out its functions

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

A single-base mutation in a messenger RNA molecule could transcribe the DNA sequence CAGTAT into

• GTCATA
• GUCAUA
• GTCUTU
• GUAAUA