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

Biology & Microbiology

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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

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Enzymes are

a. biological catalysts. b. agents that speed up cellular reactions. c. proteins. d. all of the above.

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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

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Replication of the DNA occurs during

A. metaphase. B. prophase. C. telophase. D. anaphase. E. interphase.

Biology & Microbiology