What conclusions did Beadle and Tatum reach with their studies of Neurospora?
a. Each mutant gene affected three enzymes.
b. Each mutant gene affected a pair of enzymes.
c. Each mutant gene affected only one enzyme.
d. Mutant genes had no effect on the enzymes produced by the cells.
e. Each mutant gene affected as many enzymes as were present in a particular metabolic
pathway
C
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The trait of connected earlobes is considered a
a. beneficial trait. b. harmful trait. c. neutral trait. d. dominant trait. e. significant trait.
Lungs are a more efficient method of respiration than gills.
Answer the following statement true (T) or false (F)
?
In the image above, the substance indicated as B is a(n) ____.
A. inhibitor B. regulatory molecule C. substrate D. coenzyme E. cofactor
The radius and ulna are considered to be part of
a. both the axial skeleton and the appendicular skeleton. b. the axial skeleton. c. neither the axial skeleton nor the appendicular skeleton. d. the appendicular skeleton. e. the adaxial skeleton