Plant species A has a diploid number of 28. Plant species B has a diploid number of 14. A new, sexually reproducing species C arises as an allopolyploid from hybridization of A and B. The diploid number of C would probably be
A) 14.
B) 21.
C) 28.
D) 42.
E) 63.
Ans: D) 42.
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c. gallstones d. breast cancer e. heart disease
Explain how the destruction of the original tropical forests will affect the development of new medicines
What will be an ideal response?
The number of currently described species on the planet is about ________.
a) 17,000 b) 150,000 c) 1.5 million d) 10 million
Systemic acquired resistance is
A. a broad-ranging resistance that lasts for a period of days. B. a response whereby antibodies recognize specific antigens. C. a response that occurs when the hypersensitive response fails. D. the same as the human immune response. E. a method for plants to modify their DNA for protection.