A strain that can grow in a minimal medium containing arginine, but NOT in minimal media containing citrulline nor in minimal media containing ornithine would have a mutation in the gene that encodes for _____.
Wild type bread mold can grow in a minimal medium without supplements, while certain mutated strains can only grow in a minimal medium that is supplemented with specific intermediates. See the figure below for an overview of the arginine biosynthetic pathway.
A. enzyme 1.
B. enzyme 2.
C. enzyme 3.
D. both enzymes 1 and 3.
E. both enzymes 2 and 3.
C. enzyme 3.
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Using fetal DNA from the mother’s blood for prenatal testing is a noninvasive procedure
a. True b. False
The most common type of neuron in vertebrates is the _________ neuron.
A) unipolar B) multipolar C) bipolar D) semipolar
Determine whether the following statement is true or false: Adenosine triphosphate (ATP) is a crucially important energy carrier in cells.
a. true b. false
Why is DNA favored over RNA as genetic material?
a. DNA is more stable and thus is a more efficient transmission system. b. DNA can self-replicate. c. DNA makes chromosomes. d. DNA mutates more readily with a weaker repair machinery. e. DNA has a more limited information storage capacity.