As a result of being cloned, Dolly exhibited abnormalities not seen in normally reproduced sheep. One of these abnormalities was she
A. developed arthritis in her hind legs.
B. was able to reproduce asexually, without requirement of a male sperm.
C. developed lung disease at a young age of six years.
D. developed arthritis in her back.
E. gave birth to healthy lambs through normal sexual reproduction.
A. developed arthritis in her hind legs.
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Which structure is not a major diagnostic feature of the chordates?
a. dorsal hollow nerve cord. b. notochord. c. pharyngeal gill slits. d. vertebral column.
A solution contains 0.0000001 (10-7 ) moles of hydroxyl ions [OH-] per liter. Which of the following best describes this solution?
A) acidic: H+ acceptor B) basic: H+ acceptor C) acidic: H+ donor D) neutral
The energy required for life processes must be extracted from an organism's
a. nucleus. b. predators. c. environment. d. biosynthesis.
The single ventricle in an amphibian heart means the oxygenated and deoxygenated blood mix. How do amphibians manage to survive despite this inefficiency?
A. They keep their body temperatures high. B. They move very slowly. C. They transport oxygen across the skin. D. They keep gills into adulthood. E. They absorb large amounts of fluid.