Transcription and translation can be coupled in bacteria but not eukaryotes because
A) no nuclear membrane exists in prokaryotes.
B) no nuclear membrane exists in eukaryotes.
C) the bacterial DNA is in a single chromosome.
D) eukaryotic chromosomes are found in nucleoids.
A) no nuclear membrane exists in prokaryotes.
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The nasal hairs, convoluted passages, and mucous lining of the nasal turbinates:
a. nonspecifically protect the respiratory tract from infection. b. promote colonization of normal bacterial flora. c. can aid adherence by potentially harmful bacteria. d. reduce colonization of normal bacterial flora.
what disease does HPV cause?
What will be an ideal response?
A pregnant woman was told by her doctor that while she is pregnant she might want to let someone else care for her cats so she would not contract toxoplasmosis through which mechanism?
a. Cats may have fleas that transmit toxoplasmosis b. Scratches from infected claws c. Exposure to infected cat feces d. Infection from saliva e. Infection from mice the cat may bring into the house
Normally, complement proteins are active until the body is exposed to antigen. Indicate whether the statement is true or false