Question

1. dna encodes the information necessary to produce the proteins needed by your body. to make these proteins, dna first undergoes a process known as transcription. this is when the information on a dna strand is transferred to a molecule very similar to dna, known as ______.

a. rna
b. pcu
c. enzyme transferase
d. the endoplasmic reticulum

1. the molecular sequence, or blueprint for a protein, is originally carried by which molecule?

a. atp
b. dna
c. rrna
d. trna

diagram with dna, rna, and amino acid sequence labels a, b, c, d, e, f, x, y

1. what process is indicated by \y\?

a. dna replication
b. protein synthesis
c. translation
d. transcription

1. which of the following best describes what is happening at point f in the diagram?

diagram labeled protein synthesis with cellular structures
a. the ribosome advances along the mrna, binding new trna molecules and amino acids.
b. the ribosome binds with the \start\ codon to begin translation.
c. the trna floats away from the ribosome.
d. none of the other answer choices

Explanation:

Question 36

During transcription, DNA's information is transferred to RNA (a molecule similar to DNA). PCU is not a relevant molecule here, enzyme transferase is not the molecule receiving the info, and endoplasmic reticulum is an organelle, not the molecule. So the correct answer is a. RNA.

DNA is the original blueprint for proteins. ATP is an energy molecule, rRNA is part of ribosomes, and tRNA transfers amino acids. So the molecular sequence for a protein is originally carried by DNA.

Process Y takes the RNA (D) and produces a chain of amino acids (the protein). Translation is the process of converting mRNA into a protein (amino acid chain). DNA replication makes DNA, protein synthesis is the overall process (but Y is the specific step of translation), and transcription is making RNA (process X). So Y is translation.

Answer:

a. RNA

Question 37