Chitinases are examples of ____
a. systemins
b. phytoalexins
c. PR proteins
d. R genes
e. heat-shock proteins
ANSWER: c
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What is true of the differences between chemical and electrical synapses?
a. Signals across chemical synapses are sometimes bidirectional. b. Electrical synapses are only found in the brain. c. Neurons are physically connected across electrical synapses. d. Only charged ions can travel across electrical synapses.
Who was the first researcher to establish the method for DNA sequencing?
A. Rosalind Franklin B. Frederick Sanger C. James Watson D. Ian Wilmut E. Gregor Mendel
The placement of chromosomes into one of the seven groups in a karyotype is based on the
chromosome's A. size. B. centromere position. C. banding pattern. D. size and centromere position only. E. all of these.
The cerebrum is more developed in monkeys, apes, and humans compared to other primates
____________________ Indicate whether the statement is true or false.