Which color of light do plants grow toward?
a) Green
b) Blue
c) Red
d) Yellow
Ans: b) Blue
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Which of the following statements about pinecones
is true? a. Cones are exclusively female structures. b. Cones are the result of pollination. c. One type of cone produces microspores. d. Pollen grains are retained within male cones. e. Microspores develop into female gametophytes within the ovule.
Why is the sense of smell associated with memories and emotions?
What will be an ideal response?
Why is hydrogenation used by the food industry?
A) It can create solid forms of plant-based oils. B) It creates healthy forms of trans fats. C) It converts trans forms of unsaturated fats to cis forms. D) It creates a fat that is more easily broken down by the body. E) It reduces accumulation of cholesterol in the blood vessels.
Which of the following restriction enzyme sites would produce blunt-ended fragments? (The arrow represents the cutting site of the enzyme.)
A. C?CGG B. G?GATCC C. G?AATTC D. CCC?GGG E. A?AGCTT