All of the microtubules are the same length, and homologous chromosomes are aligned midway between the spindle poles at ____.
A. telophase I
B. metaphase I
C. anaphase I
D. metaphase II
E. anaphase II
Answer: B
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When new species of a lineage move into a wide range of habitats during bursts of microevolution, it
is referred to as a. uniformitarianism. b. gradualism. c. convergence. d. adaptive radiation. e. special creation.
F+ strains of Escherichia coli
A) do not have an F factor. B) have the F factor as a plasmid. C) have an integrated F factor. D) transfer the F factor to recipient cells at a high frequency.
Prostaglandins are not
A) endocrine hormones. B) important in smooth muscle function. C) paracrine hormones. D) stimulators of inflammation. E) formed from arachidonic acid.
Artificial selection and hybridization can demonstrate the __________ basis of behavior.
A. cognitive B. operant C. genetic D. associational E. endogenous