Protein Synthesis

Transfer RNA molecules pick up amino acids which are free in the cytoplasm and carry them to

• lysosomes
• chromosomes
• nuclei
• ribosomes

A DNA molecule with the base sequence A-G-C-T-C-A was used as a template for the synthesis of a messenger RNA molecule. Which base sequence correctly represents the corresponding portion of this RNA molecule?

• T-C-A-G-C-A
• U-C-G-A-G-U
• A-G-C-U-C-A
• A-T-G-A-C-T

What is the relationship between an organism's DNA and protein specificity?

• DNA becomes a specific part of the structure.
• DNA determines the ribosomal RNA sequence that becomes part of the protein structure.
• DNA determines which RNA molecules are
  incorporated into protein molecules.
• DNA determines the amino acid sequence of
  each protein.

Some events that take place during the synthesis of a specific protein listed are: 
A) Messenger RNA attaches to a ribosome.
B) DNA serves as a template for RNA production.
C) Transfer RNA bonds to a specific codon.
D) Amino acids are bonded together.
E) RNA moves from the nucleus to the cytoplasm. 
The correct order of these events is

• B, E, A, C, D
• D, A, E, C, B
• B, C, E, D, A
• C, B, A, E, D

If one strand of DNA molecule has the base sequence A-G-C-T-A, the complementary strand of DNA would have the base sequence

• A-G-C-T-A
• U-C-G-A-T
• U-C-G-A-U
• T-C-G-A-T

A normal bacterial cell carries on the chemical reaction represented. A certain mutant bacterial cell cannot produce substance B. The mutation was most likely the result of a change in the

• ribosome on which enzyme X is made
• ability of the DNA to replicate
• amino acid sequence of RNA
• gene that codes for enzyme X

Select the nucleic acid molecules, chosen from the list below, that is best described by the statement shown.
Combines directly with amino acids

• DNA, only
• Messenger RNA, only
• Transfer RNA, only
• DNA, messenger RNA, and transfer RNA

If the diagram represents a part of the process of protein synthesis, "strand A" would

• serve as a template for the synthesis of
  messenger RNA
• carry a code determined by the original DNA
  molecule from the nucleus to the cytoplasm
• pick up and transfer specific amino acids to 
  the cytoplasm
• pick up and transfer nucleic acids to the
  nucleus

Tags

NGSS.HS-LS1-1

During protein synthesis, amino acids in the cytoplasm are picked up by molecules of

• Transfer RNA
• Messenger RNA
• Mitochondrial DNA
• Nuclear DNA

The process represented in the diagram occurs on
the cell organelle known as a

• vacuole
• ribosome
• chloroplast
• mitochondrion