A group of three mRNA nucleotides that translate to an amino acid is called a(n)
A. dictionary.
B. initiator.
C. codon.
D. uncodon.
C. codon.
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All of the following nucleotide bases are pyrimidines EXCEPT
A. adenine. B. thymine. C. cytosine. D. uracil. E. cytosine and thymine.
Which second intermediate host ingests the cercariae of Clonorchis and Opisthorchis?
a. Snail b. Crustacean c. Copepod d. Freshwater fish
The ____________________ is the neuron extension that receives information from other neurons. Fill in the blank(s) with the appropriate word(s)
A small island has stable populations of plants and animals, including one species of hawk but no other large predators. A ship docks at the island, and the ship's cat escapes. If the cat was pregnant, what do you think the sailors are likely to find if they return ten years later?
A. The bird and lizard species on the island will have many new adaptations. B. The island will have similar flora and fauna, with the addition of a cat population. C. Some species of ground-nesting birds may have gone extinct. D. Species that were formerly preyed upon by hawks will benefit. E. The increase in nitrogenous waste from the cats will increase plant productivity.