Would it ever be possible for two humans to have identical "DNA fingerprints"?
a. yes
b. no
a
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Yeast cells grown in a nutrient-rich medium and then shifted to a medium lacking essential amino acids rapidlyreduce their level of splicing of transcripts for:
A. iron response genes. B. mating factor genes. C. AU-rich elements. D. ribosomal protein genes.
Killifish preferentially prey upon small, young guppies. This leads to selective pressure for the guppy population to
____.
a. evolve an equilibrial life history b. learn to evade predators while young c. reduce the number of offspring d. put energy into growth rather than reproduction e. put energy into reproduction rather than growth
What is the mordant in the Gram stain?
a) Iodine b) Safranin c) Alcohol-acetone d) Crystal violet
A patient has pus-filled vesicles and scabs on her face, throat, and lower back. She most likely has
A) measles. B) mumps. C) chickenpox. D) rubella. E) smallpox.