In radishes, red and white are the pure-breeding
colors, and long and round are the pure-breeding
shapes, while the hybrids are purple and oval. The
cross of a red oval with a purple oval will produce all
BUT which of the following phenotypes?
a. white and long
b. purple and oval
c. red and oval
d. purple and long
e. red and long
Answer: a
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Speciation due to genetic drift is typically a very ____ process
A. rapid B. slow C. convergent D. dispersive
What is the function of the poly A tail?
A. The poly A tail is required for the proper exit of mRNA from the nucleus. B. The poly A tail allows mRNA to bind to the ribosome. C. The poly A tail increases mRNA stability in eukaryotes. D. The poly A tail increases mRNA stability in prokaryotes. E. The poly A tail serves as a termination sequence for RNA polymerase III.
The region in a tRNA that bonds with mRNA during translation is the ____
a. anticodon b. aminoacylation site c. TATA box d. cloverleaf e. reading frame
Lichens are a symbiotic relationship between which of the following?
a) a fungus and a liverwort b) a fungus and a moss c) two species of algae d) a fungus and algae e) two species of fungi