A cell's DNA molecules contain its genetic material. These molecules are constructed of
a. amino acids.
b. proteins.
c. sugars, phosphates, and bases.
d. amino acids, proteins, sugars, phosphates, and bases.
e. None of the other choices are correct.
c
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What are the characteristics of the animal and vegetal poles of the egg?
What will be an ideal response?
In both prokaryotes and eukaryotes the start codon (or initiator codon) is ____, which codes for the
amino acid ____.
a. UGA; proline b. UUU; phenylalanine c. AAA; lysine d. ACG; threonine e. AUG; methionine
If the magnification of the two image-forming lenses are both 103, the total magnification of the image will be
a. 1X. b. 10X. c. 100X. d. 1000X.
A scientist wishes to develop an antimicrobial agent that specifically targets replication elongation in Escherichia coli without interfering with proteins that catalyze other replication processes. Which of the following experimental designs is most appropriate for the scientist to explore?
A. Modify an existing antibiotic to act as a competitive inhibitor of DNA polymerase I B. Design a drug that modifies the structural configuration of DNA at the oriC locus C. Create a novel protein that acts as a competitive inhibitor of the DNA ligase binding site D. Develop a molecule that interferes with the DNA-binding ability of DNA polymerase III core enzyme