Which of the following is most toxic?

a. alcohol dehydrogenase
b. ethanol
c. acetaldehyde
d. acetate
e. carbon dioxide


C

Biology & Microbiology

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Why do florists and horticulturists often cut stems while they're holding a plant underwater?

A) to avoid transpiration B) to prevent dormancy C) to disrupt apical dominance D) to avoid formation of an embolism

Biology & Microbiology

Through chemical digestion, nucleic acids are broken down into

A) fatty acids. B) monosaccharides. C) nucleotides. D) amino acids.

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Which of the following is NOT usually considered a mutation?

a) DNA methylation taking place on a CpG site that formerly was un-methylated b) Translocation whereby a region of chromosome 8 is swapped with chromosome 14 c) Shortening of a micro satellite repeat in the exon of a gene during mitosis d) A change in the base sequences of DNA

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Stamens and carpels are, in fact, modified sporangia-bearing leaves.

Answer the following statement true (T) or false (F)

Biology & Microbiology