Northern elephant seals are ___ for every allele
that has been tested.
a. recessive
b. dominant
c. homozygous
d. heterozygous
e. co-dominant
C
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A nucleic acid contains uracil, allowing you to conclude that:
A. this nucleic acid is DNA. B. this nucleic acid is RNA. C. this nucleic acid could be either DNA or RNA.
Which of the following is not a common feature of binary fission and mitotic cell division?
A. cellular growth B. DNA synthesis C. pinching of the parent cell into two daughter cells by the cytoskeleton or cytoskeleton-like proteins D. construction of a nuclear envelope
Which is TRUE of succulent plants such as cacti or pineapple?
A. They are C3 plants. B. They are highly efficient at photosynthesis in cooler and wet environments. C. They tend to undergo substantial rates of photorespiration. D. They produce 4-carbon malate in the first step of carbon fixation. E. They continually produce sugar, both day and night under hot arid conditions.
Which one of the following is not a major plant hormone?
A. Auxins.B. Brassinosteroids. C. Ethylene. D. Cytokinins. E. Ethanol.