Warts are caused by
A. papillomavirus.
B. parvovirus.
C.
adenoviruses.
D. herpes virus.
A.
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Low-nutrient, oligotrophic waters will usually become stratified and have an anaerobic hypolimnion at certain times of the year.
Answer the following statement true (T) or false (F)
Viral resistance in crops would be regulated by which agency?
A) FDA B) USDA C) EPA D) USPTO E) None of these choices
In certain areas of the world where there's a high incidence of malaria, there's also a high incidence of sickle-cell anemia. Sickle-cell anemia results from a mutation in the gene that codes for hemoglobin
Malaria is an infectious disease carried by mosquitoes. Both malaria and sickle-cell anemia can be fatal. If an individual is homozygous for normal hemoglobin, they're more prone to malaria. If an individual is homozygous for sickle-cell hemoglobin, they'll develop sickle-cell anemia. However, if an individual is heterozygous and possesses one allele for normal hemoglobin and one allele for sickle-cell hemoglobin, they're less prone to malaria and won't develop sickle-cell disease. What description applies to this example? A) Being heterozygous can result in greater fitness for an individual. B) Inbreeding depression can result in reduced rates of survival. C) Genetic drift can occur in small populations. D) Homozygous individuals are often unhealthy.
The normal cell cycle for body cells follows a prescribed timeline based on genetic information contained within the cells. Suppose the cell cycle continues on with mitosis occurring even when it should not. What might happen?
A) A gamete may be produced. B) A tumor might grow. C) An extra limb may form. D) Viruses might replicate.