In meiosis, homologous chromosomes separate in ____
a. metaphase I
b. anaphase I
c. metaphase II
d. anaphase II
e. telophase
ANSWER: b
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Once the T3 and t4 are formed on the thyroglobulin the transfer of the iodinated protein from the lumen into the follicular cell takes place via
a) Endocytosis b) Passive diffusion c) All of the above d) None of the above
The eukaryotic organelle that is directly involved in the transport of proteins synthesized on the surface of the rough ER is called the:
A. mitochondrion. B. vacuole. C. smooth ER. D. Golgi body. E. nucleus.
The animal labeled "E" is a
a. mosquito of the genus Aedes. b. mosquito of the genus Anopheles. c. mosquito of the genus Culex. d. fly of the genus Musca. e. tick of the genus Amblyoma.
Which group of plants lack true leaves and roots?
A. liverworts, hornworts, and mosses B. ferns, club mosses, horsetails, and whisk ferns C. ginkgo, cycads, conifers, and gnetophytes D. monocots and eudicots E. All plants lack true leaves and roots.