Over human history, which process has been most important in improving the features of plants that have long been used by humans as staple foods?
A) genetic engineering
B) artificial selection
C) natural selection
D) sexual selection
E) pesticide and herbicide application
Answer: B
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A. a thallus. B. a holdfast. C. roots. D. the stipe.
Which of the following is a pigment used to alter the color of salmon?
A) Green fluorescent protein B) Astaxanthin C) Auxin D) AFP E) Hydroxyapatite
You are travelling and order a salad and bottled water. You later are feeling ill. What is your best guess?
A. Enterohemorrhagic E. coli B. Vibrio vulnificus C. Enterotoxigenic E. coli D. Clostridium botulinum
Which cell structure is an important agent in modern genetic engineering techniques?
A. ribosomes B. capsules C. plasmids D. inclusions E. mesosomes