Which of the following is not true of sister chromatids?
1.they separate at anaphase
2.they are attached to one another at the centrosome
3.at the end of interphase, there are two sister chromatids for every chromosome
4.they have the same DNA sequence as each other
2
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Mashing is a process involving ________.
A. carbohydrate hydrolysis B. protein putrefaction C. inoculation D. carbonation
You have discovered a new organism that displays bilateral symmetry during its larval stage, radial symmetry as an adult, develops three germ layers during embryonic development, and forms a mouth opposite the blastopore. Which classification for this organism is most likely?
a. Ctenophora b. Placozoa c. Echinodermata d. Cnidaria
In which of the following do the light-dependent reactions of photosynthesis take place?
a. thylakoid membranes b. stroma c. the outermost membrane d. between the outermost and innermost membranes e. a combination of more than one of these
Most hormones are distributed throughout the body by the
a. exocrine system. b. lymphatic system. c. nervous system. d. blood system. e. integumentary system.