A mutation in a single gene always has only one discrete effect on an individual's phenotype.
Answer the following statement true (T) or false (F)
False
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Bananas are picked green, shipped to their
destination, and then sprayed with an artificial plant hormone. Which plant hormone would be used for this purpose?
a. auxin b. gibberellin c. ethylene d. cytokinin e. abscisic acid
Which of the following gases was not present in the Earth's early atmosphere but appeared after the
evolution of certain organisms? a. hydrogen b. methane c. nitrogen d. oxygen e. carbon dioxide
The prokaryotic group that tends to inhabit extreme environments belongs to ________
A) Protista B) Archaea C) Euglena D) Bacteria
Which of the following diseases cause flu-like symptoms in most people infected, but can cause muscle weakness or paralysis?
A) spongiform encephalopathy B) toxoplasmosis C) tetanus D) polio E) rabies