Identify the Substance in a Gene

Identify the primary substance that makes up genes.

• Proteins

• Lipids

• Carbohydrates

• DNA

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is a component of a nucleotide in DNA?

• Amino acid

• Fatty acid

• Nitrogenous base

• Glucose

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Which of the following scientists is credited with the discovery of the structure of DNA?

• Albert Einstein

• Isaac Newton

• James Watson and Francis Crick

• Marie Curie

What type of bond holds the two strands of DNA together?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

Which of the following is NOT a nitrogenous base found in DNA?

• Adenine

• Thymine

• Cytosine

• Uracil

In the context of genetics, what does the term 'genome' refer to?

• A single gene

• All the DNA in an organism

• A pair of chromosomes

• A protein sequence

Which process involves the copying of DNA to RNA?

• Translation

• Transcription

• Replication

• Mutation

What is the role of mRNA in the cell?

• To carry genetic information from DNA to the ribosome

• To form the structure of ribosomes

• To transport amino acids to the ribosome

• To catalyze chemical reactions

Which enzyme is responsible for adding nucleotides to a growing DNA strand during replication?

• DNA helicase

• DNA polymerase

• RNA polymerase

• Ligase