Subunits sometimes build up to form a macromolecule. Which molecule is least likely to be a subunit of a macromolecule?
A. amino acids
B. glucose
C. nucleotides
D. steroids
E. fatty acids
Answer: D
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A patient presents with the following symptoms: anemia, heart failure, pneumonia, paralysis, and abdominal pain
After learning about their family history, you run a genetic test for which disorder?
a. cystic fibrosis b. albinism c. sickle-cell anemia d. achondroplasia e. schizophrenia
Enzymes are
a. biological catalysts. b. agents that speed up cellular reactions. c. proteins. d. all of the above.
Most conifers have only tracheids. Which structural feature allows water and minerals to pass from one tracheid to the next?
A) Stomata B) Pits C) Secondary cell walls D) Plasmodesmata E) Sieve plates
Replication of the DNA occurs during
A. metaphase. B. prophase. C. telophase. D. anaphase. E. interphase.