Which of the following pathogens/diseases would be the easiest to eradicate?

A. A pathogen that mostly infects animals but also sometimes causes disease in humans.
B. A pathogen that only infects humans and rarely causes signs and symptoms.
C. A disease that is asymptomatic and is carried by a large number of people in a population.
D. A pathogen that only infects humans and causes obvious signs and symptoms.
E. A pathogen that causes disease in both animals and humans.


Ans: D. A pathogen that only infects humans and causes obvious signs and symptoms.

Biology & Microbiology

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If a DNA template strand has a sequence of 3? TACAATGTAGCC 5?, the RNA produced from it will be which sequence?

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The uptake of water and mineral ions from the soil occurs primarily at the ____

a. endodermis b. root cap c. quiescent center d. pericycle e. root hairs

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The spongy body running the length of the underside of the penis is the _____.

A. coronal ridge B. corpora cavernosa C. corpus spongiosum D. coronal sponge

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Which of the following is true of radiometric dating?

A) A mineral that is 10,000 years old would best be dated with radioactive potassium. B) A mineral that is 1 billion years old would best be dated with radioactive carbon. C) Radioactive potassium-to-radon gas ratio can be used to date minerals. D) One can infer the age of a fossil by radiometric dating of the minerals found near the fossil. E) Carbon-14 decays with a half-life of 60,000 years.

Biology & Microbiology