Inducible genes are usually actively transcribed when:a
the molecule degraded by the enzyme(s) is present in the cell.
b. repressor molecules bind to the promoter.
c. lactose is absent from the cell.
d. quantities of precursor materials are low.
e. there is no other substrate that can be used by the cell.
A
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The structure that separates epithelial tissue from the underlying supporting tissue is the ____
a. duct system b. cytoskeleton c. free epithelial surface d. basement membrane e. plasma membrane
Which of the following is NOT part of the peripheral nervous system:
a. the somatic nervous system b. the autonomic nervous system c. nerves branching out from the spinal cord d. the brain
Answer the following questions true (T) or false (F)
1. The genome of all DNA animal viruses is replicated in the nucleus of the cell. 2. Bacteriophage release is a gradual process in which small numbers are released at a time. 3. Bovine spongiform encephalopathy is an example of a prion disease.
Haustoria are a feature of some pathogenic (algae/fungi/protozoa)
What will be an ideal response?