Unit 9-DNA to Proteins Practice Test

Which is one of the bases found in DNA?

• polymine

• adenine

• huanine

• serine

Which best describes the structure of a DNA molecule?

• A strand of DNA linked to a strand of RNA

• Two strands of DNA linked together

• Two strands of amino acids linked together

• Two strands of RNA linked together

Which describes how mRNA is used by a cell?

• It is used to replicate DNA during mitosis

• It is used to transfer the code for protein synthesis

• It is used to correct mutations in DNA

• It is used to stop producing carbohydrates

What would be the strand of complementary DNA produced by the strand of DNA shown below?

ATG CGA

• TAC GCT

• ATG CGA

• UAC GCU

• TUC GCT

What strand of mRNA would be produced from the strand of DNA shown below?

ACT GAC

• UGA CUG

• ACT GAC

• TGA CTG

• AGU CAG

What is it called when a bacterium uses a virus to transfer its DNA to another bacterium?

• transformation

• conjugation

• transduction

• transcription

What effect will a virus in the lytic cycle have on an organism?

• It will cause genetic mutations in sex cells.

• It will have no effect for weeks.

• It will spread bacteria in the respiratory system.

• It will destroy cells in the organism.

Which is a difference between bacteria and viruses that shows that bacteria are living organisms and viruses are not?

• Bacteria respond to their environment.

• Bacteria contain DNA.

• Bacteria are made of cells.

• Bacteria use binary fission.

What process produces mRNA?

• transcription

• translation

• replication

• conjugation

How are genes and proteins related?

• One gene codes for one protein.

• Proteins are made of parts of genes.

• Genes and proteins are both made of DNA.

• Both are made from amino acids.