Transgenic Bt crops have been genetically modified to _____
a. resist common herbicides
b. have increased protein content
c. produce an insecticide
d. be tolerant of salt in the soil
e. grow faster
c
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Your dog becomes ill and you rush him to the veterinarian's office. A technician draws blood from your dog's leg for a vet-ordered lab test. After a few minutes the lab results are given to the vet, who immediately grabs a bottle from a shelf and begins to fill a syringe with an unknown fluid. You inquire about the fluid, and the vet informs you that the fluid is necessary to manage your dog's
metabolic acidosis. Based on the information provided, what is acidosis, and what is the likely effect of the veterinarian's injection? A. Acidosis means that your dog's blood pH has dropped from its normal level, and an injection of saline is required to reverse the condition. B. Acidosis means that your dog's blood pH has increased from its normal level, and an injection of saline is required to reverse the condition. C. Acidosis means that your dog's blood pH has decreased from its normal level, and an injection of buffering solution is required to reverse the condition. D. Acidosis means that your dog's blood pH has increased from its normal level, and an injection of buffering solution is required to reverse the condition.
Your friend has a dog Rex that she feeds every night immediately after she gets up from the dinner table. You are dog-sitting one weekend and you decide to keep Rex at your house rather than leave him alone in hers. After you eat dinner and get up to clear the table, Rex starts salivating profusely and runs to his food bowl. Rex's behavior is an example of
A. an automatic reflex. B. a conditioned response. C. an irrelevant response. D. the anticipatory response. E. permanent conditioning.
Cytotoxic T lymphocytes are distinguished from other lymphocytes by the presence of ________.
A. CD4 B. CD8 C. CD19 D. All of the choices are correct.
Sex-influenced traits are
A. carried on the X chromosome and subject to dosage compensation. B. expressed more in males than in females. C. expressed in relation to hormone levels in males and females. D. expressed only in one sex. E. always expressed traits.