Attenuated agents are
A. dead viruses.
B. toxins.
C. weakened but replicating microbes.
D. parts of an organism.
C
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The env gene of the HIV genome encodes:
A. reverse transcriptase. B. integrase. C. capsid. D. matrix. E. surface glycoprotein.
The zipper-like connection between paired homologs in early prophase is known as a
A) spindle fiber. B) synaptic junction. C) synaptonemal complex. D) chiasma. E) None of the choices is correct.
The ________ is a tumor suppressor, inspecting DNA and stopping cell division when it detects damage.
Fill in the blank(s) with the appropriate word(s).
The diagram shows the rate of diffusion into a cell using carrier proteins.
The rate of diffusion will increase as
A. the number of glucose molecules decreases. B. pH rises. C. the number of glucose molecules increases. D. temperature decreases.