The jawless vertebrates, referred to as agnathans, form a monophyletic group that includes an ancestor and all of its
descendants.
a. True
b. False
ANSWER: False
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The collection of genes and the corresponding alleles is a population's
A. recessive traits. B. genotype. C. gene pool. D. phenotype. E. dominant traits.
The promotion of the lactose operon in bacteria is
a. activated by a repressor protein. b. independent of glucose concentration. c. activated by lactose binding. d. regulated by RNA polymerase. e. regulated by mRNA.
If a cell has 32 chromosomes prior to S and undergoes mitosis followed by cytokinesis, each new daughter cell will have how many chromosomes?
A. 32 B. 16 C. 64 D. 8
Which neurotransmitter may function to regulate emotions and is involved in pathways that control complex movements?
A) synapse B) serotonin C) norepinephrine D) dopamine