DNA and Protein B-LS1-1

What is the basic unit of DNA?

• Amino acid

• Nucleotide

• Lipid

• Protein

Tags

NGSS.HS-LS1-1

DOK Level 1: Recall

Which of the following best describes the shape of a DNA molecule?

• Single strand

• Double helix

• Triple helix

• Circular

Tags

NGSS.HS-LS1-1

DOK Level 1: Recall

What are the four nitrogenous bases found in DNA?

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Uracil, Cytosine, Guanine

• Thymine, Uracil, Cytosine, Guanine

• Adenine, Thymine, Uracil, Guanine

Tags

NGSS.HS-LS1-1

DOK Level 1: Recall

How does the sequence of bases in DNA determine the structure of proteins?

• By forming a double helix

• By determining the order of amino acids

• By creating hydrogen bonds

• By forming lipids

Tags

NGSS.HS-LS1-1

DOK Level 2: Skill/Concept

What role does mRNA play in protein synthesis?

• It forms the ribosome

• It carries the genetic code from DNA to the ribosome

• It transports amino acids to the ribosome

• It catalyzes the formation of peptide bonds

Tags

NGSS.HS-LS1-1

DOK Level 2: Skill/Concept

Which process involves the synthesis of mRNA from a DNA template?

• Translation

• Transcription

• Replication

• Mutation

Tags

NGSS.HS-LS1-1

DOK Level 2: Skill/Concept

Explain how a mutation in the DNA sequence can affect protein structure.

• It always results in a nonfunctional protein

• It can change the amino acid sequence, potentially altering protein function

• It has no effect on protein structure

• It only affects the protein if it occurs in a non-coding region

Tags

NGSS.HS-LS1-1

DOK Level 3: Strategic Thinking

Describe the role of tRNA in the process of translation.

• It carries the genetic code from DNA to the ribosome

• It forms the ribosome

• It transports amino acids to the ribosome and matches them to the mRNA codons

• It catalyzes the formation of peptide bonds

Tags

NGSS.HS-LS1-1

DOK Level 3: Strategic Thinking

How does the structure of DNA facilitate its replication?

• The double helix structure allows each strand to serve as a template for a new strand

• The circular structure allows for continuous replication

• The single strand structure allows for easy separation

• The triple helix structure provides stability during replication

Tags

NGSS.HS-LS1-1

DOK Level 3: Strategic Thinking

Construct an explanation for how the structure of DNA determines the structure of proteins.

• DNA's sugar-phosphate backbone forms proteins

• The sequence of nitrogenous bases in DNA codes for the sequence of amino acids in proteins

• DNA's double helix directly forms protein structures

• DNA's hydrogen bonds create protein shapes

Tags

NGSS.HS-LS1-1

DOK Level 3: Strategic Thinking