Which is incorrect about parvoviruses?
A. They cannot be transmissible to the fetus.
B. Parvovirus B19 causes erythema infectiosum
C. They are single-stranded DNA viruses.
D. They cause several diseases in dogs, cats, and other mammals.
E. They cause a disease known as fifth disease.
Answer: A
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The first evidence of a connection between genes and metabolism came from studies of alkaptonuria
conducted by ____.
a. Beadle and Tatum b. Griffith c. Watson and Crick d. Garrod e. Nirenberg and Leder
When fats are used as an energy source, the glycerol portion enters ________ when it has been converted to ________
A) the citric acid cycle; pyruvate B) glycolysis; fructose-6-phosphate C) the citric acid cycle; acetyl CoA D) the electron transport system; coenzyme Q E) glycolysis; dihydroxyacetone phosphate
The photoreceptors that allow for an individual's black-and-white vision are known as ________
Fill in the blank(s) with correct word
Which statement about adaptation is correct?
A. Higher organisms are better adapted than lower organisms. B. Adaptations arise because they are needed in particular environments. C. The adaptive value of a trait varies as the environment changes. D. Better-adapted organisms are more complex than are poorly adapted organisms.