Choose the correct sequence of events involving allopolyploidy that gave rise to modern tobacco.
A. hybridization, chromosome doubling, duplicate gene loss
B. hybridization, duplicate gene loss, chromosome doubling
C. chromosome doubling, hybridization, duplicate gene loss
D. duplicate gene loss, hybridization, chromosome doubling
A. hybridization, chromosome doubling, duplicate gene loss
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What type of evidence shows that endocrine disruptors in the water supply can cause human reproductive problems?
A) correlative B) definitive C) statistically significant D) entirely absent
Which of the following statements about rabies is FALSE?
A) It is caused by Lyssavirus. B) Hydrophobia is associated with the disease. C) Most infections in the U.S. are the result of bites from infected dogs. D) Diagnosis is based on immunofluorescent techniques. E) Average incubation period is 30 to 50 days after initial infection.
Vaccinia virus is often used in the technique to make
A. adjuvant. B. "Trojan horse" recombinant vaccine. C. antibodies to toxin. D. booster. E. gamma globulin.
In biology, calling something organic means that it was grown without the use of any type of herbicide.
Answer the following statement true (T) or false (F)