Which of the following is an ectoparasite?
A) virus that inhabits the lymphatic system
B) bacterium that attacks the brain
C) tick that attaches to the skin
D) fluke that inhabits the bloodstream
C
You might also like to view...
You are investigating an abnormal eukaryotic cell line that makes all of its mRNAs much longer than the mRNAs from normal cells (that is, they have more nucleotides than usual). Intrigued, you examine the proteins in these abnormal cells and note that
many of them are either much longer or much shorter than the normal proteins from nonmutant cells. Assuming there is just one mutant defect in these cells, what is that defect? A. A stop codon is mutated. B. RNA polymerase does not recognize the terminator sequence. C. Release factor is defective. D. The spliceosome is nonfunctional. E. The enzyme that adds the poly-A tail is defective.
The two codons for glutamine are CAA and CAG. Which one of the following is likely to be the anticodon of a tRNA that is specific for glutamine?
A. GUC B. CGU C. CUG D. GCU
If flatworms lacked protonephridia:A
they would not be able to reproduce. B. they would not be considered to be hermaphrodites. C. they would have difficulty with orientation. D. they would have difficulty with fluid balance. E. they would have difficulty sensing prey.
How did Darwin's evolutionary theory change the significance of the taxonomic categories of organisms?
What will be an ideal response?