The long-term chemical energy storage molecules in plants are steroids.
Answer the following statement true (T) or false (F)
False
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The genomes of Arabidopsis thaliana, a small member of the mustard family of plants, and rice, Oryza sativa, have been sequenced. The findings include
A. the genome for each is almost identical, indicating that they diverged in the fairly recent past. B. they each have very high copy numbers (slightly divergent copies of a gene), probably indicating episodes of polyploidy and/or segmental duplication. C. repetitive DNA, including retrotransposons, was a very small proportion of both genomes. D. more than 90% of the genes in each were particular to plants and not found in animal or fungal genomes.
Most aquatic invertebrates that have a circulatory system use internal or external ____
a. tracheal tubes b. spiracles c. lungs d. gills e. body walls for direct diffusion
Which of the following would be least accurate in detecting coliform bacteria in a water sample?
a) The presumptive MNP test b) The standard plate count c) The membrane filter method d) The confirmatory MPN test
Tautomeric shifts ________
A) are known to cause insertion or deletion mutations B) allow pyrimidines to bind to pyrimidines C) can cause missense mutations due to mispairings D) are likely to cause frameshifts E) allow purines to bind to purines