In prokaryotes, photosynthesis occurs in the ____
a. ribosomes
b. nucleoid
c. chloroplasts
d. mitochondria
e. plasma membrane
ANSWER: e
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Huntington's disease is caused by a single dominant allele. It is a lethal disease, yet it persists in the human population. Which of the following statements best describes why?
A. Huntington's disease is sex-linked and every human has at least one X chromosome; thus, the chances are extremely high for this allele to be maintained in the human population. B. Huntington's disease can present symptoms so mild that they appear to lack dominant expression of the allele in some individuals; in those cases, the allele is passed on to the offspring. C. While lethal to a parent, Huntington's disease will not be lethal to the offspring since it can skip a generation. D. Huntington's disease presents symptoms in mid-life, after most people have already had offspring. E. Even though Huntington's disease is lethal, it improves chances for reproduction before the person dies.
Which of the following is incorrectly matched?
A. simple cuboidal; kidney tubules B. stratified columnar; urethra C. stratified squamous; esophagus D. simple columnar; intestines E. simple squamous; nasal passages
During inflammation, a high neutrophil count is a common sign of bacterial infection.
Answer the following statement true (T) or false (F)
The building of complex organic molecules from simpler ones is called
a) catabolism. b) anabolism. c) photosynthesis. d) oxidation.