A pathogenic Escherichia coli strain would
cause which of the following problems except
one. Which of the following is the exception?
a. blindness
b. diarrhea
c. paralysis
d. kidney failure
e. heart failure
E
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The F factor can be integrated into the bacterial chromosome through ____
a. mitosis b. DNA replication c. transcription d. crossover events e. transduction
The molecular explanation for narcolepsy is that
A) certain brain cells have many extra orexin/hypocretin receptors, so these cells receive too many messages to sleep. B) the orexin/hypocretin receptor does not reach the cell surfaces of certain brain cells. C) a gene is missing in chromosome 6 that encodes the protein narcoleptin. D) a viral infection activates genes that promote sleep.
A birth defect in which the spinal cord protrudes out of the vertebral column at birth is called ________
a. anencephaly b. fetal alcohol syndrome (FAS) c. spina bifida d. cleft palate
Elaborate leaves called "fronds" are found in which group of seedless vascular plants?
A) mosses B) gymnosperms C) ferns D) green algae