Restriction enzymes
a. work at recognition sites.
b. function only at "sticky ends."
c. produce uniform lengths of DNA.
d. function in viruses.
e. are produced by viruses to break down
bacterial DNA
A
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What are the three sequential mechanisms involved with learning? Explain how a mouse would learn to locate cheese
in a maze as indicated by these steps.
What will be an ideal response?Four of the five answers listed below are
caused by recessive genes. Select the EXCEPTION.
a. achondroplasia. b. phenylketonuria. c. Tay-Sachs. d. hemophilia e. Duchenne muscular dystrophy
Ventricles force blood directly into the
A) capillaries. B) veins. C) arterioles. D) arteries. E) venules.
Anatomical and molecular evidence suggests that animals may have evolved from a protist similar to a ___________.
a. charophyte b. chlorophyte c. dinoflagellate d. apicomplexan e. choanoflagellate