Which of the following are considered to be oncogenic?
A) Epstein-Barr virus and human papillomaviruses
B) HIV and Ebola virus
C) rubella and rubeola viruses
D) variola and varicella viruses
A) Epstein-Barr virus and human papillomaviruses
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Hemophilia is a sex-linked recessive condition that results in deficient blood clotting. The disease causes excessive bleeding which occurs spontaneously or upon slight injury. In dogs (as in humans) hemophilia is caused by a defect in a gene on the X chromosome. What will be the results of mating between a normal, non-carrier female dog and a male dog with hemophilia?
A. All female offspring will be normal and half the male offspring will have hemophilia. B. Half the male offspring will be normal and half will have hemophilia; all females will be carriers. C. All the female offspring will be normal and all male offspring will be carriers. D. Half the female offspring will have hemophilia and half will be carriers, all male offspring will be normal. E. All of the offspring will be normal, but all females will be carriers.
Chromosomal rearrangement can occur by ____
a. translocation only b. inversion only c. translocation and inversion d. point mutations e. alternative splicing
What level of protein structure determines the protein’s final three-dimensional configuration?
a. secondary b. tertiary c. primary d. quaternary
What does it mean for an allele to become fixed, and what does it imply?
A. The frequency of the fixed allele has become 0% because it was detrimental. B. The frequency of the fixed allele has become 0% and is no longer present. C. The frequency of the fixed allele has become 100% because it is beneficial. D. The frequency of the fixed allele has become 100% and other alleles are lost.