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Transcription/Translation (Protein Synthesis)
AFL
Choose the letter of the best answer.
_____ 1. Choose the nucleotide sequence of the RNA strand that would be
complementary to the following DNA strand: GTAGTCA
a. UATUAGA.
b. ACGACTG.
c. CAUCAGU.
d. CATCAGT.
_____ 2. The main function of tRNA is to
a. carry a message that, when translated, forms proteins.
b. form a portion of ribosomes, a cell’s protein factories.
c. string together complementary RNA and DNA strands.
d. bring amino acids from the cytoplasm to the ribosomes.
_____ 3. What is the term for a three-nucleotide sequence that codes for an
amino acid?
a. base
b. codon
c. amine
d. serine
_____ 4. How many amino acids are used to make up all of the proteins in the
human body?
a. 16
b. 20
c. 23
d. 46
_____ 5. Which phrase best describes translation?
a. converts mRNA into a protein (polypeptide)
b. catalyzes bonds between amino acids
c. produces RNA from DNA molecules
d. recycles tRNA molecules for reuse
_____ 6. Which of the following is the site of translation?
a. vacuole
b. lysosome
c. nucleus
d. ribosome
Copyright © McDougal Littell/Houghton Mifflin Company.
Biology
1
From DNA to Proteins