Which gene is correctly matched with its evolutionary significance?
A. The Hox genes - evolution of body plans.
B. The BMP4 gene - evolution of lungs.
C. The gremlin gene - evolution of the simple eye.
D. The Pax6 - evolution of skull shape.
A. The Hox genes - evolution of body plans.
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Archaea differ from Bacteria in all of the following EXCEPT
A. cell wall composition. B. plasma membrane make up. C. DNA replication. D. gene expression. E. the presence of a nucleoid region.
Your son has not had the MMR vaccine (measles, mumps, rubella) because you are apprehensive about vaccines and their side effects. Your sister says that you are setting him up for a potentially damaging scenario. Which argument has the great scientific validity and why?
A. Your sister is correct in her warnings. If your son gets a severe case of mumps, he will likely develop a fatal secondary infection. B. Your sister is correct. Even if your son does not get the mumps now when he is young, but gets the infection later in life, there is a possibility of severe side effects. C. You are correct to be apprehensive because vaccines have been the cause of autism in children. D. You are correct in protecting your son. If you can keep him from getting mumps when young, it is no longer a problem. It is simply a childhood disease.
The cells that comprise pseudostratified epithelium occur in layers
____________________ Indicate whether the statement is true or false.
Rabbits and rodents are the reservoirs of the causative agent of
What will be an ideal response?