Anchor 5b DNA to Protein Synthesis

How are complementary strands of DNA held together?

• with ionic bonds between sugars and phosphate groups

• with hydrogen bonds connecting complementary bases

• with hydrogen bonds connecting complementary sugars

• with phosphodiester bonds connecting sugars and phosphate groups

The diagram represents a small section of a DNA molecule. Which section of DNA represents the complementary strand to the section?

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Tags

NGSS.HS-LS1-1

If the DNA sequence is TAGGAGCAT, what is produced when the sequence is transcribed?

• a chain of three amino acids

• a set of three tRNA molecules

• a section of DNA with the base sequence ATCCTCGTA

• a section of mRNA with the base sequence AUCCUCGUA

The first step in the process of gene expression is transcription. What is the product of transcription during gene expression?

• a molecule of thymine

• an RNA polymerase

• a molecule of RNA

• a codon

Where in the cell does transcription occur?

• chloroplast

• cytoplasm

• mitochondrion

• nucleus

Translation involves the assembling of proteins. Which of the following forms of RNA is responsible for carrying a formed amino acid to the protein assembly site during translation?

• mRNA

• rRNA

• RNA polymerase

• tRNA

What was the Human Genome Project?

• An international research project to determine exactly what every gene in the human genome does.

• An international research project to sequence the entire human genome.

• A project which used DNA analysis in order to determine whether people convicted of crimes were guilty.

• The first coordinated effort to isolate the human genome.

Which of the following is/are examples of genetically modified organisms?

I. A plant cell in which a regulation gene has been deleted.

II. A bacterial cell in which extra copies of a bacterial DNA repair gene have been added.

III. A human cell that has been infected with a virus.

• I only

• II only

• II and III

• I and II

Tags

NGSS.HS-LS3-2

Which type of mutations can result in a frameshift?

• Missense and deletions

• Nonsense and insertions

• Nonsense and missense

• Insertions and deletions

Which enzyme checks DNA for errors?

• DNA helicase

• RNA primase

• DNA polymerase

• RNA polymerase