One of the reasons that intermediate filaments have strength is the same reason that bipolar fibers of myosin II have strength.
a. true
b. false
Answer: a. true
You might also like to view...
The inferior vena cava moves blood from the ____
a. head only b. forelimbs only c. head and forelimbs d. abdominal organs only e. abdominal organs and hind limbs
The cycle of viral infection in which the viral DNA is integrated into the host's DNA is called the ________ cycle.
A. lytic B. lysogenic C. lysozyme D. retroviral
What is the relationship between mobile genetic elements and DNA methylation?
A) DNA methylation is considered to be a defense against the spread of mobile genetic elements because it prevents transcription. B) DNA methylation is reduced in regions of the genome associated with mobile genetic elements because methylation only targets protein-coding genes. C) DNA methylation prevents RNA interference and therefore allows mobile genetic elements to spread. D) DNA methylation is a form of post-transcriptional silencing of mobile genetic elements.
The evolution of organisms that use oxygen in their respiration was possible only because of the action of a group of bacteria that produced oxygen and changed the Earth's atmosphere from an anoxic one to one rich in oxygen. That group of bacteria was:
A. cyanobacteria B. proteobacteria C. spirochaetes D. Staphylococcus E. actinobacteria