Primary growth in roots originates from ____
a. dermal cells
b. vascular cells
c. apical meristems
d. lateral meristems
e. the pericycle
ANSWER: c
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Knockout experiments involving __________ genes in fruit flies (Drosophila melanogaster) revealed local controls
over gene expression. Fill in the blank(s) with the appropriate word(s).
Generation of proton gradients across membranes occurs during
A) photosynthesis. B) respiration. C) both photosynthesis and respiration. D) neither photosynthesis nor respiration. E) photorespiration.
Which of the following does NOT provide new genetic combinations?
A) Random fertilization B) Cytokinesis C) Independent assortment D) Crossing over
What nucleotide sequence would be found on the complementary DNA strand of the strand shown here?
A) ACTGT
B) UGAGA
C) TGACA
D) TGUGU