What is the main reason testing for cold agglutinins is no longer recommended to diagnose infection with Mycoplasma pneumonia?
A. It is difficult to perform.
B. False positives may be caused by certain viruses.
C. Very few people develop anti-I antibodies.
D. It requires expensive instrumentation.
Answer: B. False positives may be caused by certain viruses.
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Alternate forms of a gene are called ____
a. homologues b. loci c. alleles d. homozygous e. heterozygous
Which latitude will have the most hours of daylight on the summer solstice?
a. 0º (the equator) b. 30º north c. 45º north d. 60º north
The Food Guide Pyramid suggests that most Americans should increase their intake of ____ and reduce their intake of ___.
A. vegetables; dairy products B. water; cereals C. vegetables; fats D. meats; fruits
Climate change has been linked to mass extinctions
Indicate whether the statement is true or false