Honors Protein Synthesis

In transcription, ________.

• RNA polymerase links nucleotides to form mRNA

• both DNA strands are used as the templates

• a polypeptide is formed

• the promoter region acts as an initial binding site for mRNA

In eukaryotic cells, a terminator in mRNA synthesis is ________.

• a stop codon

• . a specific nucleotide sequence in mRNA that signals the RNA polymerase to stop

• a specific nucleotide sequence in DNA that signals the RNA polymerase to stop

• an enzyme whose specific function is to stop transcription

In eukaryotic cells, the RNA is processed before it leaves the nucleus. This processing ________.

• includes the removal of exons before the addition of a cap and tail, which assist in binding of the ribosome

• b. includes the addition of a cap and tail, which protect the mRNA molecule from enzymatic attack, and the removal of introns

• includes the addition of a cap and tail, which help in exporting the mRNA molecule from the nucleus, and the removal of exons

• includes the removal of introns before a cap and tail are added to the RNA molecule, forming the start site for translation once attached to the ribosome

If protein production were an assembly line, a ribosome would be ________.

• the machines that move pieces to their appropriate locations

• the foreman who barks out instructions

• a loose piece that needs to be put together

• the worker who puts all of the pieces together

During the process of translation, ________ matches an mRNA codon with the proper amino acid.

• transfer RNA
• DNA polymerase

• messenger RNA

• a ribosome

A eukaryotic cell has a nuclear envelope that allows tRNA molecules, but not mRNA molecules, to leave the nucleus. Which of the following processes will not be able to take place in this cell?

• RNA being made from DNA

• DNA replication

• tRNAs binding to codons

• tRNAs binding to amino acids

Below are three statements. Which of the following choices properly matches the statements with the correct biological processes? I. This occurs in the nucleus of eukaryotic cells with DNA polymerase. II. Transfer RNAs bind amino acids in the cytoplasm. III. An RNA polymerase enzyme is required.

• I: replication; II: transcription; III: replication

• I: transcription; II: translation; III: replication

• I: transcription; II: translation; III: translation

• I: replication; II: translation; III: transcription

A gene made of ________ is transcribed into ________ and then translated to form a ________.

• RNA ... DNA ... protein

• protein ... RNA ... DNA

• DNA ... RNA ... protein

• DNA ... protein ... RNA

Tags

NGSS.HS-LS1-1

The type of mutation represented below is a(n) ________. The big red fly had one eye (wild type) The fbi gre dif yha don eey (mutant)

• addition of a codon

• frameshift

• deletion

• single base substitution

Tags

NGSS.HS-LS3-2

Any change in the nucleotide sequence of DNA is called a ________.

• mutation
• base substitution

• frameshift

• There is not a correct answer.

Tags

NGSS.HS-LS3-2