Claviceps purpurea produces a(n) __________, which infests grain and has been important in many
historical events, as ingestion of infested grain milled into flour can cause hallucinations and even
death.
a. ergot
b. smut
c. rust
d. brown rot
e. mildew
A
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If a person has a recessive allele for a disorder and that allele is masked by presence of a normal dominant allele, this person Select one:
a. has the disease but cannot pass this disease to their offspring. b. is termed a linkage group. c. cannot produce gametes. d. is homozygous for the disease. e. is termed a carrier.
Which of the following structures is the location of gas exchange between the inhaled air and the blood?
A) trachea B) bronchioles C) alveoli D) bronchi E) pleura
Which of the following choices below represents the correct way to repair the mismatch?
(a) New Strand A, Template T (b) New Strand C, Template G (c) New Strand C, Template A (c) New Strand G, Template T
El Niño and La Niña ____.
A. both decrease water temperatures in the eastern Pacific Ocean B. both increase water temperatures in the eastern Pacific Ocean C. both increase water temperatures in the Gulf of Mexico D. cause more rain and less rain, respectively, in Australia E. cause fewer hurricanes and more hurricanes, respectively, in the North Atlantic