Jurassic Park is possible in theory but not in reality. Why?
A. There is not enough space on this Earth for dinosaurs
B. There is not a similar organism alive in which to put the DNA
C. At best, we can only get a few fragments of dinosaur DNA and we would need the entire genome to create a dinosaur
Answer: C. At best, we can only get a few fragments of dinosaur DNA and we would need the entire genome to create a dinosaur
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A pea plant is known to be heterozygous and is described as YyWw. This is the plant's ________.
Fill in the blank(s) with the appropriate word(s).
Energy sources are needed for which of the
following processes? I. reproduction II. growth III. development a. I and II b. I and III c. II only d. II and III e. I, II, and III
An herbivore is indicated by
a. A. b. B. c. C. d. D. e. E.
The human genome encodes about 21,000 protein-coding genes. Approximately how many such genes does the typical differentiated human cell express at any one time?
(a) 21,000—all of them (b) between 18,900 and 21,000—at least 90% of the genes (c) between 5000 and 15,000 (d) less than 2100