A plant with two seed leaves is
a. a monocotyledon.
b. a dicotyledon.
c. exemplified by corn.
d. a dihybrid.
d
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The second electron shell of an atom can hold a maximum of ______ electron(s).
A) 2 B) 3 C) 6 D) 1 E) 8
What is the partial pressure of oxygen in air at sea level?
A) 160 mm Hg B) 210 mm Hg C) 400 mm Hg D) 60 mm Hg E) 600 mm Hg
Which of the following has been proposed as an explanation for the relationship between energy input and diversity (the energy-diversity hypothesis)?
A) A larger amount of energy in an ecosystem can be shared by a larger number of species. B) Greater energy input and the resulting higher biological productivity might also support larger population sizes. C) High energy input might accelerate rates of evolutionary change and thus increase the rate of species formation. D) all of the above
In a PCR, the polymerase adds nucleotides to the 3'-hydroxyl of the terminal nucleotide of each primer. Briefly describe how this results in the amplification of the single region of interest in the genome
What will be an ideal response?