5.11 Test Study Guide: Molecular Genetics

What is the name of the process in which tRNA is involved in making proteins?

• transcription

• translation

• mitosis

• replication

The diagram shows the process of transcription, which takes place in the nucleus of a cell.

What is occurring?

• RNA is being used as a template to make a molecule of tRNA

• DNA is being used as a template to make a molecule of mRNA

Which action is one role of RNA polymerase during transcription?

• to break down an already existing protein

• to build a molecule of mRNA

Which statement is true about the DNA molecule during transcription?

• only a small area is opened

• it makes a copy of itself

• it unwinds from both ends

• it opens up all the way

Which two types of RNA pair up using a codon-anticodon link?

• mRNA and tRNA

• mRNA and rRNA

• tRNA and rRNA

• tRNA only

Which type of RNA carries genetic instructions for building a specific protein?

• mRNA only

• tRNA only

• rRNA only

• DNA

What is the function of tRNA?

• carry genetic instructions for building a protein

• bring an amino acid to the ribosome

This diagram shows the process of translation.

Which statement is correct?

• the mRNA code determines which tRNA molecules are used

• The amino acid chain is brought in at the beginning of the process

Which structure in this diagram is responsible for bringing in the amino acids?

• 1

• 3

• 2

• 4

Which two structures in this diagram are first to combine in translation?

• 1 and 2

• 1 and 4

• 2 and 3

• 3 and 4