________ is a bacterial plasmid vector.
A. Lambda
B. T4 DNA ligase
C. SV40
D. pUC19
Answer: D
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During gastrulation, the cellular process by which ectoderm in the animal pole spreads toward the vegetal pole is called
A. epiboly. B. invagination. C. involution. D. convergent extension. E. apical constriction.
What is the correct pathway for a neural impulse?
a. Interneuron - motor - sensory b. Sensory - motor - interneuron c. Motor - sensory - interneuron d. Motor - sensory - interneuron e. Sensory - interneuron - motor
Wegener first presented the idea of continental drift in 1920 and this theory was confirmed in 1960.
Answer the following statement true (T) or false (F)
Which of the following statements is TRUE?
A) Heroin binds to endorphin receptors. B) Caffeine increases the effects of neurotransmitters that normally suppress nerve signals. C) Alcohol is a stimulant. D) Nicotine is a depressant.