When Mendel crossed heterozygotes for flower color and seed color, what proportion of the offspring had both dominant phenotypes?

A) 1/3 B) 3/4 C) 1/16 D) 3/16 E) 9/16


Answer: E

Biology & Microbiology

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Humans are unable to get metabolic energy from cellulose because:  

A.  cellulose contains very little chemical energy. B.  cellulose is not part of a normal diet. C.  cellulose digesting enzymes are absent from the human gut. D.  cellulose does not taste good. E.  cellulose is present in large quantities in the gut.

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What is abnormal muscle tone or tension called?

a. dystonia b. atrophy c. dystrophy

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What is the directionality of the DNA molecule?

A. front to back B. top to bottom C. 5' to 3' D. 3' to 5' E. all DNA molecules are different in their directionality

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Four of the following have radial cleavage patterns. Which one is the exception?

a. snails b. salamanders c. earthworms d. sea stars e. mammals

Biology & Microbiology