Which of the following mutagens is MOST likely to cause a frameshift mutation?
A. intercalating agent
B. ionizing radiation
C. base analog
D. alkylating agent
E. UV light
Ans: A. intercalating agent
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Which of the following represents the use of osmotic pressure as a microbial control method?
A. Salting of meat B. Bleaching a kitchen counter C. Exposing dental equipment to UV light D. Rinsing of a cut with Betadine
Which microtubule type is paired to its correct function?
A. Polar microtubules - positioning of the spindle apparatus B. Aster microtubules - positioning of the spindle apparatus C. Kinetochore microtubules - separate the poles D. Polar microtubules - bind kinetochore to centromere
Class I major histocompatibility complex molecules are found on ________ cells.
A. all anucleated B. all nucleated C. antigen-presenting D. None of the choices are correct.
People who have a single X chromosome are female, while those with XXY sex chromosomes are males. In order to be a female, a human
A. cannot have an X chromosome. B. must have only one X chromosome. C. must have two X chromosomes. D. cannot have a Y chromosome. E. must have only one Y chromosome.