If you found no cytotoxic effects with your plant extract, does this prove the extract is not cytotoxic? Explain.
What will be an ideal response?
It only shows that the extract is not toxic at those concentrations and under those specific experimental conditions.
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The ABC genes in Arabidopsis are considered homeotic genes. What could be a reason for this classification?
A) Each of the three genes codes for a different flower organ. B) Each gene codes for regulatory transcription factors. C) Each gene is similar in sequence to homeotic genes in Drosophila. D) Each gene codes for proteins similar to Hox genes in mice.
Member of the genus Cytophaga contribute significantly to the process of wastewater treatment.
Answer the following statement true (T) or false (F)
Hookworms, pinworms, and guinea worms are
a. roundworms. b. flatworms. c. annelids. d. circular worms. e. flukes.
A fire fighter can lose up to ___ in an hour of strenuous exertion.
a. 1.5 quarts b. 1 quart c. .5 quart d. 2 quarts