The artificial introduction of three key ______________ intoan adult cell can convert the adult cell into a cell with the properties of ES cells
(a) chromosomes
(b) viruses
(c) hormones
(d) transcription factors
(d)
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Albinism is due to the inability to make ________
A) tyrosine B) melanin C) hair D) collagen
Which of the following could be used to demonstrate a homeostatic mechanism?
a. city buses transporting people from their houses to their jobs b. water stored behind a dam being released to make electricity c. a hot water heater keeping the water temperature near 100 degrees d. a series of underground passageways connected to a large building e. the seasonal changes that occur in the daily temperature
The unique chemical qualities of individual amino acids do not directly determine the function of an enzyme. What, then, is the role of the individual amino acid's unique chemical qualities, and what directly determines the function of an enzyme?
What will be an ideal response?
One advantage of sexual reproduction over asexual reproduction is that:
a. sexual reproduction is faster. b. sexual reproduction is less difficult to achieve. c. sexual reproduction is particularly effective for sessile animals. d. sexual reproduction promotes genetic diversity. e. sexual reproduction produces genetically identical offspring