Pattern formation during embryonic development is based on
a. a promoter and one or more operators.
b. post-translational modification.
c. RNA interference.
d. dosage compensation.
e. maternal mRNA gradient in the embryo.
e
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When two genes are located on different chromosomes, ____ of the offspring from a testcross for
genetic linkage should have a recombinant phenotype.
a. over 75% b. about 50% c. about 25% d. about 10% e. about 5%
Which of the following is NOT a characteristic
of a stolon?
a. they are found on strawberries b. they have nodes c. they originate from roots d. they grow above or below ground e. more than one of these is NOT a characteristic of a stolon
What feature in Word is made up of cells?
Which one of the following incorrectly matches a molluscan group with a feature characterizing that group?
A. Polyplacophora-eight calcareous plates B. Gastropoda-torsion C. Bivalvia-reduced head and no radula D. Nudibranchs-extensive gills in mantle cavity E. Cephalopoda-closed circulatory system