The fate of a cell during development is:
A: entirely controlled by nuclear gene expression.
B: independent of gene expression.
C: influenced by cytoplasmic determinants.
D: determined solely by inducers.
E: not altered by reagents that interfere with microtubule formation.
Answer: C: influenced by cytoplasmic determinants.
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Evaluate the following statements. Which one is most accurate?
A. Since bacteria reproduce asexually, all bacteria originating from one source are genetically identical to each other. B. While bacteria reproduce asexually, they use many mechanisms to transfer genetic materials between each other and as such as not all genetically identical to each other. C. Bacteria reproduce sexually, and have many mechanisms to spread their genetic materials to other bacteria. D. Bacteria reproduce asexually, and as such do not have mechanisms to generate genetic diversity among themselves.
Endorphins
a. are natural painkillers. b. are released during orgasm c. influence the effects of neurotransmitters d. are released during exercise or laughter. e. include all of these descriptions.
Visceral pain is a response to
a. muscle spasms. b. muscle fatigue. c. inadequate blood flow to organs. d. severe chemical stimulation. e. any of these.
Which of the following are needed to form a triaclglycerol molecule?
A) 3 fatty acid molecules B) 3 carbon rings C) 3 phosphate groups D) 3 glycerol molecules E) 3 trans fats