New cases of tuberculosis are frequently the result of reactivation of old dormant infections.
Answer the following statement true (T) or false (F)
True
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You find what you believe is a new species of animal. Which of the following characteristics would enable you to argue that it is more closely related to a flatworm than it is to a roundworm?
A) It has a cuticle that it sheds to grow. B) It is a suspension feeder. C) It has no coelom. D) It is shaped like a worm. E) It has a mouth and an anus.
Multiple lines of evidence indicate that complex multicellularity has evolved at least six different times. Which of the following superkingdoms include organisms that exhibit complex multicellularity?
A. Opisthokonta, Archaeplastida, Stramenopila B. Opisthokonta, Amoebozoa, Archaeplastida, Stramenopila C. plants, animals, fungi, slime molds D. plants, animals, fungi, slime molds, red algae, green algae, brown algae E. green algae (and land plants), red algae, brown algae, animals, fungi, slime molds
The virus-induced, specific damage to the host cell that can be seen in a light microscope is called
A. budding. B. plaques. C. cytopathic effect. D. lysogeny. E. pocks.
You are studying the effects of specific transcription factors on the activation of gene expression. You notice that one particular transcription factor binds far away from the promoter of its target gene. What can explain this?
A. DNA looping brings the transcription factor closer to the promoter and initiates gene transcription. B. RNA looping brings the transcription factor closer to the promoter and initiates gene transcription. C. The transcription factor tags the enhancer with ubiquitin to stimulate transcription. D. The transcription factor transcribes small RNAs that then bind to the promoter and activate the gene's expression.