7.B: Protein Synthesis

What is the role of mRNA in protein synthesis?

• It carries protein building instructions from DNA to the ribosome.

• It is the building block of proteins.

• It separates the two strands of DNA.

• It is an enzyme that reads a strand of DNA.

Tags

NGSS.HS-LS1-1

What is the function of ribosomes?

• They perform protein synthesis.

• They carry amino acids to protein-building ribosomes.

• They separate the two strands of DNA.

• They are the building blocks of nucleic acids.

What are amino acids?

• The monomers (building blocks) of proteins.

• The building blocks of nucleic acids.

• A group of organic molecules that perform many functions.

• Non-coding strands of RNA.

Tags

NGSS.HS-LS1-6

What is a nucleotide?

• The building blocks of nucleic acids consisting of a phosphate, sugar, and a nitrogenous base.

• The monomers (building blocks) of proteins.

• A group of organic molecules that perform many functions.

• Non-coding strands of RNA.

Why can't DNA deliver instructions to the ribosome?

• It's too large

• It's stuck inside the nucleus

• It's unstable

• It's too complex

What is the role of messenger RNA (mRNA)?

• Makes up the ribosome

• Delivers amino acids to ribosome

• Copy of instructions from DNA

• Changes the sequence of DNA

How many chromosomes do humans have in every cell?

• 23

• 46

• 64

• 92

Tags

NGSS.HS-LS3-1

What does a change in the DNA sequence affect?

• Only the ribosome

• Only the mRNA

• The instructions and the protein

• Only the tRNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

What is the result of a mutation in the DNA sequence?

• No change in the protein

• Change in the protein

• Only change in the mRNA

• Only change in the tRNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Which mRNA codon corresponds to the amino acid Tyrosine?

• UAC

• UAU

• UAA

• UAG