T cell-target cell interactions induce specialized Tc cells to produce ________ that kill virus-infected target cells
A) perforins
B) granulozymes
C) leukocidins
D) pyogens
Answer: A
You might also like to view...
Asexual reproduction occurs in:
A. unicellular eukaryotes. B. skin cells. C. plant dermal cells. D. All of the above are correct.
Which of the following accurately gives the distribution of phenotypes produced from a cross of purple dwarf pea plants that are heterozygous for flower color and plant height?
A. 63 purple dwarf; 28 purple tall; 27 white dwarf; 7 white tall B. 132 purple dwarf; 138 white tall C. 54 purple dwarf; 6 white tall D. 100% purple dwarf E. 27 purple dwarf; 28 purple tall; 31 white dwarf; 29 white tall
One reason that prokaryotic genes do not contain introns is that
A) the introns are cut out during binary fission. B) due to the short time the bacterium is around as a single organism, a 5' cap and poly (A) tail are added immediately for translation to take place. C) bacterial proteins are very short and not subject to mutation. D) translation sometimes begins before transcription has been completed because prokaryotes do not have a nucleus. E) integrated viral DNA is not recognized for transcription.
Sickle cell disease is inherited as an autosomal recessive trait. The genotype of an individual with sickle cell disease is
A) homozygous dominant. B) homozygous recessive. C) heterozygous dominant. D) heterozygous recessive.