DNA & RNA: Transcription, Replication, Translation

What are mutations?

• Changes in the

  nucleotide sequence of

  DNA

• Changes in the sugars of a nucleotide

• Changes to a nucleus

• Changes to an enzyme

In what process is mRNA synthesized?

• Transcription

• Translation

• DNA Replication

• Mitosis

The mRNA leaves the ________ to find the ribosome to make proteins.

• cell
• nucleotide
• nucleus

Why must transcription occur in the nucleus?

• because DNA can't leave the nucleus

• because ribosomes are in the nucleus

• because DNA polymerase is found there

• because helicase unzips the DNA

What brings the amino acids to the ribosome to assemble a protein?

• mRNA
• tRNA
• rRNA
• DNA

Choose the sequence of the mRNA strand that would match up with to the following DNA strand:

GTACAT

• CATGTA

• GAUCUA

• CAUGUA

• CUTGTU

When these bond together, they form a protein

• Amino Acids

• Peptide Bonds

• Ribose

• Nucleotides

What determines the shape and function of a protein?

• The sequence of amino acids

• The type of ribosome that assembles the protein

• The cell that manufactures the protein

True or False: mRNA contains anticodons and tRNA contains codons.

• True

• False

How can a mutation in the DNA sequence result in NO change to the protein that is made?

• There are multiple codons that can code for the same amino acid and result in the same protein

• There is always a change in the protein when a mutation occurs

• Only the mRNA is used in protein synthesis so a mutation in the DNA would have no effect on the protein