The classic complement pathway can be distinguished from the alternative pathway by:
a) The formation of C3 convertase
b) The activation of C5 convertase
c) Its subsequent activation following B cell activation
d) It activation with LPS
Answer: c) Its subsequent activation following B cell activation
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Many single-celled eukaryotes that normally exist in a haploid state reproduce asexually by:
A. meiotic cell division. B. binary fission. C. mitotic cell division. D. fusion.
What is the process through which many animals develop irreversible species-specific behavior patterns?
A. altruism B. taxis C. operant conditioning D. cognitive learning E. imprinting
When two eggs are fertilized by two different sperm, what type of twins is formed?
a. identical twins b. fraternal twins c. always same sex twins d. conjoined twins e. monozygotic
Linked genes, by definition, are genes that Select one:
a. have more alleles than usual. b. are found in the same species. c. are alleles that are found in different daughter cells. d. are found on the same chromosome. e. have no alleles.