7.3. Protein Synthesis: Translation

What is the purpose of introns in the mRNA processing?

• To determine the sequence of amino acids

• To remove exons

• To splice exons together

• To allow different cells to use the same gene to produce different proteins

If a portion of DNA instructs a cell to make a protein with the first amino acid as alanine, what will be the first three nucleotide bases of the DNA portion?

• Guanine, Cytosine, Adenine

• Adenine, Cytosine, Thymine

• Thymine, Adenine, Guanine

• Cytosine, Guanine, Adenine

Tags

NGSS.HS-LS1-1

Which nucleotide sequence indicates that the scientist is studying RNA?

• Adenine, Thymine, Cytosine, Guanine, Uracil, Cytosine

• Adenine, Thymine, Cytosine, Guanine, Uracil, Adenine

• Guanine, Cytosine, Cytosine, Thymine, Guanine, Adenine

• Guanine, Cytosine, Cytosine, Uracil, Guanine, Adenine

What is the net result of tRNA anticodons being attracted by mRNA codons?

• mRNA makes a negative image to copy nucleotide sequence in DNA

• Amino acids line up and link to form a protein

• tRNA strands carry amino acids to mRNA

• mRNA codon attracts a specific amino acid

Tags

NGSS.HS-LS1-6

Which molecule essentially acts as a messenger, sending instructions from nuclear DNA to the ribosome?

• Transfer RNA (tRNA)

• Messenger RNA (mRNA)

• Ribosome

• Enzymes

What is the sequence of three nucleotide bases on tRNA that is bonded to an amino acid?

• Anticodon

• Intron

• Codon

• Exon

What is the process called when tRNA links mRNA and amino acids line up next to each other?

• Translocation

• Replication

• Transcription

• Translation

Which phase of the process involves mRNA making a negative image to copy the nucleotide sequence in DNA?

• Translocation

• Translation

• Replication

• Transcription

True or False: Exons are removed before the mRNA gets to the ribosome.

• Cannot be determined

• Not mentioned

• False

• True

True or False: Cysteine (amino acid) can be called for by more than one sequence of nucleotide bases in the translation process.

• True

• if the exons have been removed

• False

• if directed to do so by the introns