Single-stranded complementary tails that are produced by restriction digestion are called ________ ends.
A. 5'
B. sticky
C. vectors
D. orphaned
Answer: B
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What is the role of the epithelium?
A. Transmits electrical signals throughout the body B. Helps protect the body from the external environment C. Provides the padding between the joints D. Contracts to create body movement
Smoking tobacco regularly during pregnancy
results in all EXCEPT a. increased risk of miscarriage. b. newborns of lower birth weight. c. reduced vitamin C levels for the mother-tobe and for her fetus. d. fetal facial and cranial deformities. e. higher incidence of fetal heart defects.
This stage of the cell cycle is characterized by growth and it contains a checkpoint to verify that all of the DNA has been replicated prior to mitosis.
A. G1 B. G2 C. Cytokinesis D. Mitosis E. S
The NADPH required for carbon dioxide fixation during the Calvin cycle is formed
A) only in C4 plants. B) by the reduction of oxygen. C) during the light reactions. D) in the mitochondria. E) by the hydrolysis of ATP.